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blue · cool

#c9dbfc

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

Token name suggestion: Whisper Sapphire

RGB
201, 219, 252
HSL
219°, 90%, 89%
CMYK
20, 13, 0, 1
Luminance
0.7011

#c9dbfc is a pale electric blue, 219° on the wheel and 95/100 on the cool side. Put black text on it (15.02:1). As text it scores 1.40:1 on white — use #256DF3 instead. Nearest name is Light Steel Blue, nearest Tailwind family is sky.

hsl(219 90% 89%)rgb(201 219 252)Base step 200AAA inkCool

At a glance

Every number on this page in one read: what #c9dbfc is made of, how bright it looks, and which way it leans.

Hex
#c9dbfc
Hue
219°
blue
Saturation
90%
electric
Lightness
89%
pale
Brightness
99%
HSV value
Perceived
85%
weighted brightness
Luminance
0.7011
WCAG relative
Temperature
Cool
95/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
15.02:1
Closest name
Light Steel Blue
ΔE2000 6.4
Chroma
18.1
LCH, 0–130ish
OKLCH L
0.888
perceptual lightness
Tailwind
sky
500 · ΔE 23.1
Web-safe
#CCCCFF
nearest of 216
Where it sits
Hue219° of 360°
Saturation90%
Lightness89%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #c9dbfc.

Temperature
Warm ← → Cool95% 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
Red18%
Green72%
Blue10%

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

Every format

HEX#c9dbfc
HEX (8-digit)#c9dbfcff
RGBrgb(201, 219, 252)
RGBArgba(201, 219, 252, 1)
HSLhsl(219, 90%, 89%)
HSV / HSBhsv(219, 20%, 99%)
HWBhwb(219 79% 1%)
CMYKcmyk(20%, 13%, 0%, 1%)
LABlab(87.0 0.8 -18.1)
LCHlch(87.0 18.1 272.5)
OKLCHoklch(0.888 0.050 262.6)
XYZ (D65)xyz(66.99, 70.11, 102.08)
Decimal13229052
Display P3color(display-p3 0.788 0.859 0.988)
Web-safe#CCCCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #c9dbfc;
background-color: #c9dbfc;
/* CSS custom property */
--brand: #c9dbfc;
/* Tailwind (arbitrary) */
class="text-[#c9dbfc] bg-[#c9dbfc]"
/* SCSS */
$brand: #c9dbfc;
/* SwiftUI */
Color(red: 0.788, green: 0.859, blue: 0.988)
/* UIKit */
UIColor(red: 0.788, green: 0.859, blue: 0.988, alpha: 1)
/* Android XML */
<color name="brand">#C9DBFC</color>
/* Android Compose */
Color(0xFFC9DBFC)
/* Flutter */
Color(0xFFC9DBFC)
/* Python / OpenCV (BGR) */
(252, 219, 201)
/* Python / PIL (RGB) */
(201, 219, 252)
/* Java AWT */
new Color(201, 219, 252)
/* .NET */
Color.FromArgb(255, 201, 219, 252)
/* OpenGL / Unity (0–1) */
(0.7882f, 0.8588f, 0.9882f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{201,219,252}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #c9dbfc 85%, white);
border-color: color-mix(in oklab, #c9dbfc 40%, transparent);
/* theme-aware in one line */
color: light-dark(#072F79, #D3DCEE);
/* relative colour syntax */
--hover: hsl(from #c9dbfc 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: #F2F6FD;
  --brand-100: #E5ECFB;
  --brand-200: #c9dbfc;
  --brand-300: #95B8F9;
  --brand-400: #6095F6;
  --brand-500: #2A71F3;
  --brand-600: #0D5AE8;
  --brand-700: #0B4BC1;
  --brand-800: #093C9B;
  --brand-900: #0B2E70;
  --brand-950: #071D46;
  --brand: #c9dbfc;
  --brand-ink: #000000;
  --brand-surface: #F4F6FA;
  --brand-border: #C0D0ED;
  --brand-hover: #A7C4FA;
  --brand-pressed: #85AEF8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141A24;
    --brand-ink: #D3DCEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2F6FD',
        100: '#E5ECFB',
        200: '#c9dbfc',
        300: '#95B8F9',
        400: '#6095F6',
        500: '#2A71F3',
        600: '#0D5AE8',
        700: '#0B4BC1',
        800: '#093C9B',
        900: '#0B2E70',
        950: '#071D46',
        DEFAULT: '#c9dbfc',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2F6FD,
  '100': #E5ECFB,
  '200': #c9dbfc,
  '300': #95B8F9,
  '400': #6095F6,
  '500': #2A71F3,
  '600': #0D5AE8,
  '700': #0B4BC1,
  '800': #093C9B,
  '900': #0B2E70,
  '950': #071D46,
);
$brand-base: #c9dbfc;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2F6FD", "$type": "color" },
      "100": { "$value": "#E5ECFB", "$type": "color" },
      "200": { "$value": "#c9dbfc", "$type": "color" },
      "300": { "$value": "#95B8F9", "$type": "color" },
      "400": { "$value": "#6095F6", "$type": "color" },
      "500": { "$value": "#2A71F3", "$type": "color" },
      "600": { "$value": "#0D5AE8", "$type": "color" },
      "700": { "$value": "#0B4BC1", "$type": "color" },
      "800": { "$value": "#093C9B", "$type": "color" },
      "900": { "$value": "#0B2E70", "$type": "color" },
      "950": { "$value": "#071D46", "$type": "color" }
    },
    "brandInk": { "$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 #c9dbfc · 15.02:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.40:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.02:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #c9dbfc as text scores 1.40:1 on white and 15.02:1 on black.
Best tinted ink on it, if plain black or white feels flat: #072F79 at 8.88:1.

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
#256DF3 · 4.60:1
AA on white−34% L
#256DF3
The quick fox
#0B4FCA · 7.03:1
AAA on white−47% L
#0B4FCA
The quick fox
#c9dbfc · 15.02:1
AA on blackalready passes
#c9dbfc
The quick fox
#c9dbfc · 15.02:1
AAA on blackalready passes
#c9dbfc

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5A91F6 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
#c9dbfc on white: 1.40:1
AA ✗ fail · AA-large · AAA
Aa
#c9dbfc on black: 15.02:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #c9dbfc as text on that neutral, and that neutral as text on #c9dbfc.

NeutralRatioBoth directions
White1.40:1AaAa
Slate 501.34:1AaAa
Slate 1001.28:1AaAa
Slate 2001.13:1AaAa
Slate 3001.06:1AaAa
Slate 4001.83:1AaAa
Slate 5003.40:1AaAa
Slate 6005.42:1AaAa
Slate 7007.41:1AaAa
Slate 80010.46:1AaAa
Slate 90012.77:1AaAa
Black15.02:1AaAa
Colour vision deficiency
true color
protanopia · #D1DDFE
deuteranopia · #CCD8FB
tritanopia · #BCE2E6

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. #c9dbfc 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.

#F2F6FD
#E5ECFB
#c9dbfc
#95B8F9
#6095F6
#2A71F3
#0D5AE8
#0B4BC1
#093C9B
#0B2E70
#071D46
Base = 200Lightest = 50 · #F2F6FDDarkest = 950 · #071D46Text step on white = 600
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 0.012 262.6);
  --brand-100: oklch(0.94 0.020 262.6);
  --brand-200: oklch(0.88 0.030 262.6);
  --brand-300: oklch(0.80 0.039 262.6);
  --brand-400: oklch(0.72 0.046 262.6);
  --brand-500: oklch(0.64 0.050 262.6);
  --brand-600: oklch(0.56 0.050 262.6);
  --brand-700: oklch(0.48 0.047 262.6);
  --brand-800: oklch(0.40 0.042 262.6);
  --brand-900: oklch(0.32 0.035 262.6);
  --brand-950: oklch(0.24 0.027 262.6);
}

Colors that work with #c9dbfc

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#F4F6FA
Tinted page background
Border#C0D0ED
Hairlines and dividers
Muted text#4B679B
Captions on the surface
Accent#C55207
Second voice, not a rival
Dark variant#072F79
Hover, pressed, headers
Light variant#E7EFFE
Selected rows, tints
Dark surface#141A24
Dark-mode background
Hover#A7C4FA
One step down in lightness
Pressed#85AEF8
Two steps down
Disabled#F3F4F7
Chroma pulled out
Focus ring#D6E5FF
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 #c9dbfc

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 #072F79
Safe as a 1px border on white
No — use #5A91F6

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
  • Weight11/100
  • 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#FCEAC9
Analogous left#C9F5FC
Analogous right#D0C9FC
Split-complement 1#FCD0C9
Split-complement 2#F5FCC9
Triadic 1#FCC9DB
Triadic 2#DBFCC9
Tetradic#FCC9F5
On the wheel
Base+30°−30°+120°+240°+180°219°

#c9dbfc sits at 219°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red78.8%
Green85.9%
Blue98.8%
R · 0–255
201
0xc9
G · 0–255
219
0xdb
B · 0–255
252
0xfc

CMYK percentages

Cyan20.2%
Magenta13.1%
Yellow0.0%
Key (black)1.2%

Total ink coverage is 35%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#c9dbfc text on a black background

contrast 15.02:1

Card sample

#c9dbfc text on a white background

contrast 1.40:1

Card sample

#c9dbfc on grey

1.28:1

#c9dbfc on its own surface

1.29:1

#c9dbfc on its dark surface

12.49:1

CSS3 live lab

Text font color

The quick brown fox

color: #c9dbfc;
Background color
Panel with #c9dbfc background
background-color: #c9dbfc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #c9dbfc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(201, 219, 252, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(201, 219, 252, 0.45);
Border & gradient
Gradient panel
border: 3px solid #c9dbfc;
background: linear-gradient(135deg, #c9dbfc, #D9C9FC);
Gradient text

Gradient headline

background: linear-gradient(90deg, #c9dbfc, #E6C9FC);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #c9dbfc;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #c9dbfc;
caret-color: #c9dbfc;
Left rule
Pull quote or callout
border-left: 4px solid #c9dbfc;
Ring + tint
Selected chip
background: #E7EFFE;
box-shadow: inset 0 0 0 2px #c9dbfc;
Conic badge
68%
background: conic-gradient(#c9dbfc 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #c9dbfc 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(201, 219, 252, 0.5)
rgb(201 219 252 / 50%)
#c9dbfc80
hsl(219 90% 89% / 50%)
color-mix(in srgb, #c9dbfc 50%, transparent)
Alpha8-digit hexFlat on white
10%#c9dbfc1a#FAFBFF
20%#c9dbfc33#F4F8FE
40%#c9dbfc66#E9F1FE
60%#c9dbfc99#DFE9FD
80%#c9dbfccc#D4E2FD

Gradients from #c9dbfc

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, #ECF2FE, #c9dbfc 45%, #072F79);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #c9dbfc, #CBACFA);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #c9dbfc, #FCEAC9);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F1F5FE 0%, #c9dbfc 45%, #072F79 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F6FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #F9FEFF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #EBE6FE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #072F79 0%, transparent 65%), #c9dbfc;

Monochromatic scale

Palettes built from #c9dbfc

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.

#c9dbfc 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 15.02:1.

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.

#c9dbfc, answered

What color is #c9dbfc?

#c9dbfc is a pale electric blue, closest to Light Steel Blue (ΔE2000 6.4). It sits at 219° on the hue wheel with 90% saturation and 89% lightness, which reads as cool.

What is the RGB value of #c9dbfc?

rgb(201, 219, 252) — 201 red, 219 green and 252 blue out of 255, or 78.8% / 85.9% / 98.8% by channel.

What is #c9dbfc in HSL and HSV?

hsl(219, 90%, 89%) and hsv(219, 20%, 99%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #c9dbfc a light or a dark color?

It is a light color. Relative luminance is 0.7011 and perceived brightness is 85%, so black text on it reaches 15.02:1.

Should I use black or white text on #c9dbfc?

Black. It scores 15.02:1 against #c9dbfc, versus 1.40:1 for white — AAA at any size.

Is #c9dbfc accessible on a white background?

#c9dbfc on white scores 1.40:1, which fails WCAG AA at every size. Darken it to #256DF3 to reach 4.5:1, or #0B4FCA for 7:1.

What is the complementary color of #c9dbfc?

#FCEAC9 sits directly opposite on the wheel. Softer options are the split-complements #FCD0C9 and #F5FCC9, which give the same contrast with far less vibration.

What colors go well with #c9dbfc?

For interface work: #F4F6FA as the surface, #C0D0ED for borders, #4B679B for secondary text, #C55207 as an accent and #072F79 for hover and pressed states. For a palette, the analogous pair #C9F5FC and #D0C9FC stays calm, while #FCEAC9 is the loudest partner.

What is #c9dbfc in CMYK for printing?

cmyk(20%, 13%, 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 #c9dbfc warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #CAC9FC; nudged cooler, #B0D2FB.

Which Tailwind color is closest to #c9dbfc?

The sky family — its 500 step is #0ea5e9, ΔE2000 23.1 away. That is a visible difference, so define #c9dbfc as a custom token rather than reaching for the built-in.

How do I use #c9dbfc in Tailwind CSS?

Inline it as an arbitrary value with bg-[#c9dbfc] or text-[#c9dbfc], 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 #c9dbfc with 50% opacity?

rgba(201, 219, 252, 0.5), or #c9dbfc80 in eight-digit hex. Over white that composites to #E4EDFE; over black, #656E7E.

Is #c9dbfc a web-safe color?

No. The nearest web-safe colour is #CCCCFF, ΔE2000 7.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #c9dbfc 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 #c9dbfc?

The safest is same-hue elevation: linear-gradient(135deg, #ECF2FE, #c9dbfc 45%, #072F79). For more colour, a short hue run to #CBACFA keeps it rich without turning muddy.

Work with #c9dbfc in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #c9dbfc at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.