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blue · cool

#cee5fd

a pale, electric blue · cool · closest name: Light Steel Blue

Token name suggestion: Frost Cobalt

RGB
206, 229, 253
HSL
211°, 92%, 90%
CMYK
19, 10, 0, 1
Luminance
0.7625

#cee5fd is a pale electric blue, 211° on the wheel and 100/100 on the cool side. Put black text on it (16.25:1). As text it scores 1.29:1 on white — use #0973E1 instead. Nearest name is Light Steel Blue, nearest Tailwind family is cyan.

hsl(211 92% 90%)rgb(206 229 253)Base step 200AAA inkCool

At a glance

Every number on this page in one read: what #cee5fd is made of, how bright it looks, and which way it leans.

Hex
#cee5fd
Hue
211°
blue
Saturation
92%
electric
Lightness
90%
pale
Brightness
99%
HSV value
Perceived
88%
weighted brightness
Luminance
0.7625
WCAG relative
Temperature
Cool
100/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
16.25:1
Closest name
Light Steel Blue
ΔE2000 7.8
Chroma
14.4
LCH, 0–130ish
OKLCH L
0.912
perceptual lightness
Tailwind
cyan
500 · ΔE 21.9
Web-safe
#CCCCFF
nearest of 216
Where it sits
Hue211° of 360°
Saturation92%
Lightness90%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #cee5fd.

Temperature
Warm ← → Cool100% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red17%
Green73%
Blue9%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#cee5fd
HEX (8-digit)#cee5fdff
RGBrgb(206, 229, 253)
RGBArgba(206, 229, 253, 1)
HSLhsl(211, 92%, 90%)
HSV / HSBhsv(211, 19%, 99%)
HWBhwb(211 81% 1%)
CMYKcmyk(19%, 10%, 0%, 1%)
LABlab(90.0 -2.7 -14.2)
LCHlch(90.0 14.4 259.2)
OKLCHoklch(0.912 0.041 249.4)
XYZ (D65)xyz(71.20, 76.25, 103.88)
Decimal13559293
Display P3color(display-p3 0.808 0.898 0.992)
Web-safe#CCCCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #cee5fd;
background-color: #cee5fd;
/* CSS custom property */
--brand: #cee5fd;
/* Tailwind (arbitrary) */
class="text-[#cee5fd] bg-[#cee5fd]"
/* SCSS */
$brand: #cee5fd;
/* SwiftUI */
Color(red: 0.808, green: 0.898, blue: 0.992)
/* UIKit */
UIColor(red: 0.808, green: 0.898, blue: 0.992, alpha: 1)
/* Android XML */
<color name="brand">#CEE5FD</color>
/* Android Compose */
Color(0xFFCEE5FD)
/* Flutter */
Color(0xFFCEE5FD)
/* Python / OpenCV (BGR) */
(253, 229, 206)
/* Python / PIL (RGB) */
(206, 229, 253)
/* Java AWT */
new Color(206, 229, 253)
/* .NET */
Color.FromArgb(255, 206, 229, 253)
/* OpenGL / Unity (0–1) */
(0.8078f, 0.8980f, 0.9922f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{206,229,253}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #cee5fd 85%, white);
border-color: color-mix(in oklab, #cee5fd 40%, transparent);
/* theme-aware in one line */
color: light-dark(#053F7B, #D3E0EE);
/* relative colour syntax */
--hover: hsl(from #cee5fd h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F2F7FD;
  --brand-100: #E4EFFB;
  --brand-200: #cee5fd;
  --brand-300: #93C6FB;
  --brand-400: #5DA9F8;
  --brand-500: #278DF6;
  --brand-600: #0A78EB;
  --brand-700: #0864C4;
  --brand-800: #06509D;
  --brand-900: #093C71;
  --brand-950: #062647;
  --brand: #cee5fd;
  --brand-ink: #000000;
  --brand-surface: #F4F7FA;
  --brand-border: #C0D6ED;
  --brand-hover: #ACD3FC;
  --brand-pressed: #89C1FA;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141C24;
    --brand-ink: #D3E0EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2F7FD',
        100: '#E4EFFB',
        200: '#cee5fd',
        300: '#93C6FB',
        400: '#5DA9F8',
        500: '#278DF6',
        600: '#0A78EB',
        700: '#0864C4',
        800: '#06509D',
        900: '#093C71',
        950: '#062647',
        DEFAULT: '#cee5fd',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2F7FD,
  '100': #E4EFFB,
  '200': #cee5fd,
  '300': #93C6FB,
  '400': #5DA9F8,
  '500': #278DF6,
  '600': #0A78EB,
  '700': #0864C4,
  '800': #06509D,
  '900': #093C71,
  '950': #062647,
);
$brand-base: #cee5fd;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2F7FD", "$type": "color" },
      "100": { "$value": "#E4EFFB", "$type": "color" },
      "200": { "$value": "#cee5fd", "$type": "color" },
      "300": { "$value": "#93C6FB", "$type": "color" },
      "400": { "$value": "#5DA9F8", "$type": "color" },
      "500": { "$value": "#278DF6", "$type": "color" },
      "600": { "$value": "#0A78EB", "$type": "color" },
      "700": { "$value": "#0864C4", "$type": "color" },
      "800": { "$value": "#06509D", "$type": "color" },
      "900": { "$value": "#093C71", "$type": "color" },
      "950": { "$value": "#062647", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #cee5fd · 16.25:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.29:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.25:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #cee5fd as text scores 1.29:1 on white and 16.25:1 on black.
Best tinted ink on it, if plain black or white feels flat: #053F7B at 8.11:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#0973E1 · 4.61:1
AA on white−44% L
#0973E1
The quick fox
#0758AC · 7.00:1
AAA on white−55% L
#0758AC
The quick fox
#cee5fd · 16.25:1
AA on blackalready passes
#cee5fd
The quick fox
#cee5fd · 16.25:1
AAA on blackalready passes
#cee5fd

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #3B97F7 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#cee5fd on white: 1.29:1
AA ✗ fail · AA-large · AAA
Aa
#cee5fd on black: 16.25:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #cee5fd as text on that neutral, and that neutral as text on #cee5fd.

NeutralRatioBoth directions
White1.29:1AaAa
Slate 501.24:1AaAa
Slate 1001.18:1AaAa
Slate 2001.05:1AaAa
Slate 3001.15:1AaAa
Slate 4001.98:1AaAa
Slate 5003.68:1AaAa
Slate 6005.86:1AaAa
Slate 7008.01:1AaAa
Slate 80011.32:1AaAa
Slate 90013.81:1AaAa
Black16.25:1AaAa
Colour vision deficiency
true color
protanopia · #DCE5FE
deuteranopia · #D7E0FD
tritanopia · #C2EAED

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #cee5fd is pinned to step 200; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F7FD
#E4EFFB
#cee5fd
#93C6FB
#5DA9F8
#278DF6
#0A78EB
#0864C4
#06509D
#093C71
#062647
Base = 200Lightest = 50 · #F2F7FDDarkest = 950 · #062647Text step on white = 700
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.010 249.4);
  --brand-100: oklch(0.94 0.016 249.4);
  --brand-200: oklch(0.88 0.025 249.4);
  --brand-300: oklch(0.80 0.032 249.4);
  --brand-400: oklch(0.72 0.038 249.4);
  --brand-500: oklch(0.64 0.041 249.4);
  --brand-600: oklch(0.56 0.041 249.4);
  --brand-700: oklch(0.48 0.039 249.4);
  --brand-800: oklch(0.40 0.034 249.4);
  --brand-900: oklch(0.32 0.029 249.4);
  --brand-950: oklch(0.24 0.023 249.4);
}

Colors that work with #cee5fd

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F7FA
Tinted page background
Border#C0D6ED
Hairlines and dividers
Muted text#4B729B
Captions on the surface
Accent#C83804
Second voice, not a rival
Dark variant#053F7B
Hover, pressed, headers
Light variant#E6F2FE
Selected rows, tints
Dark surface#141C24
Dark-mode background
Hover#ACD3FC
One step down in lightness
Pressed#89C1FA
Two steps down
Disabled#F3F5F7
Chroma pulled out
Focus ring#D6EAFF
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #cee5fd

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #053F7B
Safe as a 1px border on white
No — use #3B97F7

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The high lightness makes it recede — a surface colour rather than a statement.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight10/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#FDE6CE
Analogous left#CEFDFD
Analogous right#CECEFD
Split-complement 1#FDCECE
Split-complement 2#FDFDCE
Triadic 1#FDCEE5
Triadic 2#E5FDCE
Tetradic#FDCEFD
On the wheel
Base+30°−30°+120°+240°+180°211°

#cee5fd sits at 211°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red80.8%
Green89.8%
Blue99.2%
R · 0–255
206
0xce
G · 0–255
229
0xe5
B · 0–255
253
0xfd

CMYK percentages

Cyan18.6%
Magenta9.5%
Yellow0.0%
Key (black)0.8%

Total ink coverage is 29%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#cee5fd text on a black background

contrast 16.25:1

Card sample

#cee5fd text on a white background

contrast 1.29:1

Card sample

#cee5fd on grey

1.18:1

#cee5fd on its own surface

1.20:1

#cee5fd on its dark surface

13.31:1

CSS3 live lab

Text font color

The quick brown fox

color: #cee5fd;
Background color
Panel with #cee5fd background
background-color: #cee5fd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #cee5fd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(206, 229, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(206, 229, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cee5fd;
background: linear-gradient(135deg, #cee5fd, #D6CEFD);
Gradient text

Gradient headline

background: linear-gradient(90deg, #cee5fd, #E2CEFD);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #cee5fd;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #cee5fd;
caret-color: #cee5fd;
Left rule
Pull quote or callout
border-left: 4px solid #cee5fd;
Ring + tint
Selected chip
background: #E6F2FE;
box-shadow: inset 0 0 0 2px #cee5fd;
Conic badge
68%
background: conic-gradient(#cee5fd 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #cee5fd over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(206, 229, 253, 0.5)
rgb(206 229 253 / 50%)
#cee5fd80
hsl(211 92% 90% / 50%)
color-mix(in srgb, #cee5fd 50%, transparent)
Alpha8-digit hexFlat on white
10%#cee5fd1a#FAFCFF
20%#cee5fd33#F5FAFF
40%#cee5fd66#EBF5FE
60%#cee5fd99#E2EFFE
80%#cee5fdcc#D8EAFD

Gradients from #cee5fd

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #EBF5FE, #cee5fd 45%, #053F7B);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #cee5fd, #C4B1FC);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #cee5fd, #FDE6CE);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F0F7FE 0%, #cee5fd 45%, #053F7B 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F7FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #FFFFFF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #EDEBFE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #053F7B 0%, transparent 65%), #cee5fd;

Monochromatic scale

Palettes built from #cee5fd

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#cee5fd in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 16.25:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#cee5fd, answered

What color is #cee5fd?

#cee5fd is a pale electric blue, closest to Light Steel Blue (ΔE2000 7.8). It sits at 211° on the hue wheel with 92% saturation and 90% lightness, which reads as cool.

What is the RGB value of #cee5fd?

rgb(206, 229, 253) — 206 red, 229 green and 253 blue out of 255, or 80.8% / 89.8% / 99.2% by channel.

What is #cee5fd in HSL and HSV?

hsl(211, 92%, 90%) and hsv(211, 19%, 99%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #cee5fd a light or a dark color?

It is a light color. Relative luminance is 0.7625 and perceived brightness is 88%, so black text on it reaches 16.25:1.

Should I use black or white text on #cee5fd?

Black. It scores 16.25:1 against #cee5fd, versus 1.29:1 for white — AAA at any size.

Is #cee5fd accessible on a white background?

#cee5fd on white scores 1.29:1, which fails WCAG AA at every size. Darken it to #0973E1 to reach 4.5:1, or #0758AC for 7:1.

What is the complementary color of #cee5fd?

#FDE6CE sits directly opposite on the wheel. Softer options are the split-complements #FDCECE and #FDFDCE, which give the same contrast with far less vibration.

What colors go well with #cee5fd?

For interface work: #F4F7FA as the surface, #C0D6ED for borders, #4B729B for secondary text, #C83804 as an accent and #053F7B for hover and pressed states. For a palette, the analogous pair #CEFDFD and #CECEFD stays calm, while #FDE6CE is the loudest partner.

What is #cee5fd in CMYK for printing?

cmyk(19%, 10%, 0%, 1%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #cee5fd warm or cool?

Cool — it scores 100 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #CED4FD; nudged cooler, #B5D7FD.

Which Tailwind color is closest to #cee5fd?

The cyan family — its 500 step is #06b6d4, ΔE2000 21.9 away. That is a visible difference, so define #cee5fd as a custom token rather than reaching for the built-in.

How do I use #cee5fd in Tailwind CSS?

Inline it as an arbitrary value with bg-[#cee5fd] or text-[#cee5fd], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #cee5fd with 50% opacity?

rgba(206, 229, 253, 0.5), or #cee5fd80 in eight-digit hex. Over white that composites to #E7F2FE; over black, #67737F.

Is #cee5fd a web-safe color?

No. The nearest web-safe colour is #CCCCFF, ΔE2000 11.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #cee5fd mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #cee5fd?

The safest is same-hue elevation: linear-gradient(135deg, #EBF5FE, #cee5fd 45%, #053F7B). For more colour, a short hue run to #C4B1FC keeps it rich without turning muddy.

Work with #cee5fd in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #cee5fd at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.