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blue · cool

#dfeffe

a pale, electric blue · cool · closest name: Alice Blue

Token name suggestion: Chalk Sapphire

RGB
223, 239, 254
HSL
209°, 94%, 94%
CMYK
12, 6, 0, 0
Luminance
0.8458

#dfeffe is a pale electric blue, 209° on the wheel and 100/100 on the cool side. Put black text on it (17.92:1). As text it scores 1.17:1 on white — use #0775DC instead. Nearest name is Alice Blue, nearest Tailwind family is cyan.

hsl(209 94% 94%)rgb(223 239 254)Base step 100AAA inkCool

At a glance

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

Hex
#dfeffe
Hue
209°
blue
Saturation
94%
electric
Lightness
94%
pale
Brightness
100%
HSV value
Perceived
93%
weighted brightness
Luminance
0.8458
WCAG relative
Temperature
Cool
100/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
17.92:1
Closest name
Alice Blue
ΔE2000 4.3
Chroma
9.3
LCH, 0–130ish
OKLCH L
0.945
perceptual lightness
Tailwind
cyan
500 · ΔE 24.4
Web-safe
#CCFFFF
nearest of 216
Where it sits
Hue209° of 360°
Saturation94%
Lightness94%
Saturation × lightness field

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

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
Red19%
Green73%
Blue8%

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

Every format

HEX#dfeffe
HEX (8-digit)#dfeffeff
RGBrgb(223, 239, 254)
RGBArgba(223, 239, 254, 1)
HSLhsl(209, 94%, 94%)
HSV / HSBhsv(209, 12%, 100%)
HWBhwb(209 87% 0%)
CMYKcmyk(12%, 6%, 0%, 0%)
LABlab(93.7 -2.4 -9.0)
LCHlch(93.7 9.3 255.3)
OKLCHoklch(0.945 0.026 246.3)
XYZ (D65)xyz(79.18, 84.58, 105.90)
Decimal14675966
Display P3color(display-p3 0.875 0.937 0.996)
Web-safe#CCFFFF

Copy-ready code

every platformclick to select
/* CSS */
color: #dfeffe;
background-color: #dfeffe;
/* CSS custom property */
--brand: #dfeffe;
/* Tailwind (arbitrary) */
class="text-[#dfeffe] bg-[#dfeffe]"
/* SCSS */
$brand: #dfeffe;
/* SwiftUI */
Color(red: 0.875, green: 0.937, blue: 0.996)
/* UIKit */
UIColor(red: 0.875, green: 0.937, blue: 0.996, alpha: 1)
/* Android XML */
<color name="brand">#DFEFFE</color>
/* Android Compose */
Color(0xFFDFEFFE)
/* Flutter */
Color(0xFFDFEFFE)
/* Python / OpenCV (BGR) */
(254, 239, 223)
/* Python / PIL (RGB) */
(223, 239, 254)
/* Java AWT */
new Color(223, 239, 254)
/* .NET */
Color.FromArgb(255, 223, 239, 254)
/* OpenGL / Unity (0–1) */
(0.8745f, 0.9373f, 0.9961f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{223,239,254}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #dfeffe 85%, white);
border-color: color-mix(in oklab, #dfeffe 40%, transparent);
/* theme-aware in one line */
color: light-dark(#04427C, #D3E1EE);
/* relative colour syntax */
--hover: hsl(from #dfeffe 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: #F2F8FD;
  --brand-100: #dfeffe;
  --brand-200: #C2DFFA;
  --brand-300: #92C9FC;
  --brand-400: #5CADFA;
  --brand-500: #2592F8;
  --brand-600: #077EED;
  --brand-700: #0669C6;
  --brand-800: #05549E;
  --brand-900: #083F72;
  --brand-950: #052747;
  --brand: #dfeffe;
  --brand-ink: #000000;
  --brand-surface: #F4F7FA;
  --brand-border: #C0D7ED;
  --brand-hover: #BCDEFD;
  --brand-pressed: #9ACCFC;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141C24;
    --brand-ink: #D3E1EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2F8FD',
        100: '#dfeffe',
        200: '#C2DFFA',
        300: '#92C9FC',
        400: '#5CADFA',
        500: '#2592F8',
        600: '#077EED',
        700: '#0669C6',
        800: '#05549E',
        900: '#083F72',
        950: '#052747',
        DEFAULT: '#dfeffe',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2F8FD,
  '100': #dfeffe,
  '200': #C2DFFA,
  '300': #92C9FC,
  '400': #5CADFA,
  '500': #2592F8,
  '600': #077EED,
  '700': #0669C6,
  '800': #05549E,
  '900': #083F72,
  '950': #052747,
);
$brand-base: #dfeffe;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2F8FD", "$type": "color" },
      "100": { "$value": "#dfeffe", "$type": "color" },
      "200": { "$value": "#C2DFFA", "$type": "color" },
      "300": { "$value": "#92C9FC", "$type": "color" },
      "400": { "$value": "#5CADFA", "$type": "color" },
      "500": { "$value": "#2592F8", "$type": "color" },
      "600": { "$value": "#077EED", "$type": "color" },
      "700": { "$value": "#0669C6", "$type": "color" },
      "800": { "$value": "#05549E", "$type": "color" },
      "900": { "$value": "#083F72", "$type": "color" },
      "950": { "$value": "#052747", "$type": "color" }
    },
    "brandInk": { "$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 #dfeffe · 17.92:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.17:1
AA fail · AA large fail · AAA fail
Aa
Black text · 17.92:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #dfeffe as text scores 1.17:1 on white and 17.92:1 on black.
Best tinted ink on it, if plain black or white feels flat: #04427C at 8.63:1.

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
#0775DC · 4.58:1
AA on white−49% L
#0775DC
The quick fox
#0558A6 · 7.11:1
AAA on white−60% L
#0558A6
The quick fox
#dfeffe · 17.92:1
AA on blackalready passes
#dfeffe
The quick fox
#dfeffe · 17.92:1
AAA on blackalready passes
#dfeffe

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #3298F9 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
#dfeffe on white: 1.17:1
AA ✗ fail · AA-large · AAA
Aa
#dfeffe on black: 17.92:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

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

NeutralRatioBoth directions
White1.17:1AaAa
Slate 501.12:1AaAa
Slate 1001.07:1AaAa
Slate 2001.05:1AaAa
Slate 3001.27:1AaAa
Slate 4002.19:1AaAa
Slate 5004.06:1AaAa
Slate 6006.46:1AaAa
Slate 7008.83:1AaAa
Slate 80012.48:1AaAa
Slate 90015.23:1AaAa
Black17.92:1AaAa
Colour vision deficiency
true color
protanopia · #E9EFFF
deuteranopia · #E6EBFE
tritanopia · #D7F2F4

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. #dfeffe is pinned to step 100; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F8FD
#dfeffe
#C2DFFA
#92C9FC
#5CADFA
#2592F8
#077EED
#0669C6
#05549E
#083F72
#052747
Base = 100Lightest = 50 · #F2F8FDDarkest = 950 · #052747Text 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 0.007 246.3);
  --brand-100: oklch(0.94 0.011 246.3);
  --brand-200: oklch(0.88 0.016 246.3);
  --brand-300: oklch(0.80 0.021 246.3);
  --brand-400: oklch(0.72 0.024 246.3);
  --brand-500: oklch(0.64 0.026 246.3);
  --brand-600: oklch(0.56 0.026 246.3);
  --brand-700: oklch(0.48 0.025 246.3);
  --brand-800: oklch(0.40 0.022 246.3);
  --brand-900: oklch(0.32 0.019 246.3);
  --brand-950: oklch(0.24 0.015 246.3);
}

Colors that work with #dfeffe

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#C0D7ED
Hairlines and dividers
Muted text#4B749B
Captions on the surface
Accent#CC3100
Second voice, not a rival
Dark variant#04427C
Hover, pressed, headers
Light variant#E6F3FE
Selected rows, tints
Dark surface#141C24
Dark-mode background
Hover#BCDEFD
One step down in lightness
Pressed#9ACCFC
Two steps down
Disabled#F3F5F7
Chroma pulled out
Focus ring#D6EBFF
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 #dfeffe

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 #04427C
Safe as a 1px border on white
No — use #3298F9

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
  • Weight7/100
  • 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#FEEEDF
Analogous left#DFFEFD
Analogous right#DFDFFE
Split-complement 1#FEDFDF
Split-complement 2#FEFDDF
Triadic 1#FEDFEF
Triadic 2#EFFEDF
Tetradic#FDDFFE
On the wheel
Base+30°−30°+120°+240°+180°209°

#dfeffe sits at 209°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red87.5%
Green93.7%
Blue99.6%
R · 0–255
223
0xdf
G · 0–255
239
0xef
B · 0–255
254
0xfe

CMYK percentages

Cyan12.2%
Magenta5.9%
Yellow0.0%
Key (black)0.4%

Total ink coverage is 19%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#dfeffe text on a black background

contrast 17.92:1

Card sample

#dfeffe text on a white background

contrast 1.17:1

Card sample

#dfeffe on grey

1.07:1

#dfeffe on its own surface

1.09:1

#dfeffe on its dark surface

14.67:1

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(223, 239, 254, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(223, 239, 254, 0.45);
Border & gradient
Gradient panel
border: 3px solid #dfeffe;
background: linear-gradient(135deg, #dfeffe, #E4DFFE);
Gradient text

Gradient headline

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

Marked up text

text-decoration-color: #dfeffe;
caret-color: #dfeffe;
Left rule
Pull quote or callout
border-left: 4px solid #dfeffe;
Ring + tint
Selected chip
background: #E6F3FE;
box-shadow: inset 0 0 0 2px #dfeffe;
Conic badge
68%
background: conic-gradient(#dfeffe 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #dfeffe 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(223, 239, 254, 0.5)
rgb(223 239 254 / 50%)
#dfeffe80
hsl(209 94% 94% / 50%)
color-mix(in srgb, #dfeffe 50%, transparent)
Alpha8-digit hexFlat on white
10%#dfeffe1a#FCFDFF
20%#dfeffe33#F9FCFF
40%#dfeffe66#F2F9FF
60%#dfeffe99#ECF5FE
80%#dfeffecc#E5F2FE

Gradients from #dfeffe

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, #dfeffe 45%, #04427C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #dfeffe, #CFC1FD);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #dfeffe, #FEEEDF);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F0F8FF 0%, #dfeffe 45%, #04427C 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%, #FDFDFF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #04427C 0%, transparent 65%), #dfeffe;

Monochromatic scale

Palettes built from #dfeffe

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.

#dfeffe 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 17.92:1.

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.

#dfeffe, answered

What color is #dfeffe?

#dfeffe is a pale electric blue, closest to Alice Blue (ΔE2000 4.3). It sits at 209° on the hue wheel with 94% saturation and 94% lightness, which reads as cool.

What is the RGB value of #dfeffe?

rgb(223, 239, 254) — 223 red, 239 green and 254 blue out of 255, or 87.5% / 93.7% / 99.6% by channel.

What is #dfeffe in HSL and HSV?

hsl(209, 94%, 94%) and hsv(209, 12%, 100%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #dfeffe a light or a dark color?

It is a light color. Relative luminance is 0.8458 and perceived brightness is 93%, so black text on it reaches 17.92:1.

Should I use black or white text on #dfeffe?

Black. It scores 17.92:1 against #dfeffe, versus 1.17:1 for white — AAA at any size.

Is #dfeffe accessible on a white background?

#dfeffe on white scores 1.17:1, which fails WCAG AA at every size. Darken it to #0775DC to reach 4.5:1, or #0558A6 for 7:1.

What is the complementary color of #dfeffe?

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

What colors go well with #dfeffe?

For interface work: #F4F7FA as the surface, #C0D7ED for borders, #4B749B for secondary text, #CC3100 as an accent and #04427C for hover and pressed states. For a palette, the analogous pair #DFFEFD and #DFDFFE stays calm, while #FEEEDF is the loudest partner.

What is #dfeffe in CMYK for printing?

cmyk(12%, 6%, 0%, 0%). 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 #dfeffe 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 #DFE4FE; nudged cooler, #C6E0FE.

Which Tailwind color is closest to #dfeffe?

The cyan family — its 500 step is #06b6d4, ΔE2000 24.4 away. That is a visible difference, so define #dfeffe as a custom token rather than reaching for the built-in.

How do I use #dfeffe in Tailwind CSS?

Inline it as an arbitrary value with bg-[#dfeffe] or text-[#dfeffe], 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 #dfeffe with 50% opacity?

rgba(223, 239, 254, 0.5), or #dfeffe80 in eight-digit hex. Over white that composites to #EFF7FF; over black, #70787F.

Is #dfeffe a web-safe color?

No. The nearest web-safe colour is #CCFFFF, ΔE2000 13.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #dfeffe 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 #dfeffe?

The safest is same-hue elevation: linear-gradient(135deg, #EBF5FE, #dfeffe 45%, #04427C). For more colour, a short hue run to #CFC1FD keeps it rich without turning muddy.

Work with #dfeffe in the Color Lab

Every tool opens with this colour already loaded.

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