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blue · cool

#edf0fc

a pale, vivid blue · cool · closest name: Ghost White

Token name suggestion: Whisper Harbour

RGB
237, 240, 252
HSL
228°, 71%, 96%
CMYK
6, 5, 0, 1
Luminance
0.8735

#edf0fc is a pale vivid blue, 228° on the wheel and 90/100 on the cool side. Put black text on it (18.47:1). As text it scores 1.14:1 on white — use #506DE2 instead. Nearest name is Ghost White, nearest Tailwind family is cyan.

hsl(228 71% 96%)rgb(237 240 252)Base step 50AAA inkCool

At a glance

Every number on this page in one read: what #edf0fc is made of, how bright it looks, and which way it leans.

Hex
#edf0fc
Hue
228°
blue
Saturation
71%
vivid
Lightness
96%
pale
Brightness
99%
HSV value
Perceived
94%
weighted brightness
Luminance
0.8735
WCAG relative
Temperature
Cool
90/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
18.47:1
Closest name
Ghost White
ΔE2000 2.9
Chroma
6.2
LCH, 0–130ish
OKLCH L
0.956
perceptual lightness
Tailwind
cyan
500 · ΔE 29.7
Web-safe
#FFFFFF
nearest of 216
Where it sits
Hue228° of 360°
Saturation71%
Lightness96%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #edf0fc.

Temperature
Warm ← → Cool90% 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
Red21%
Green71%
Blue8%

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

Every format

HEX#edf0fc
HEX (8-digit)#edf0fcff
RGBrgb(237, 240, 252)
RGBArgba(237, 240, 252, 1)
HSLhsl(228, 71%, 96%)
HSV / HSBhsv(228, 6%, 99%)
HWBhwb(228 93% 1%)
CMYKcmyk(6%, 5%, 0%, 1%)
LABlab(94.9 1.2 -6.1)
LCHlch(94.9 6.2 281.1)
OKLCHoklch(0.956 0.016 274.8)
XYZ (D65)xyz(83.65, 87.35, 104.53)
Decimal15593724
Display P3color(display-p3 0.929 0.941 0.988)
Web-safe#FFFFFF

Copy-ready code

every platformclick to select
/* CSS */
color: #edf0fc;
background-color: #edf0fc;
/* CSS custom property */
--brand: #edf0fc;
/* Tailwind (arbitrary) */
class="text-[#edf0fc] bg-[#edf0fc]"
/* SCSS */
$brand: #edf0fc;
/* SwiftUI */
Color(red: 0.929, green: 0.941, blue: 0.988)
/* UIKit */
UIColor(red: 0.929, green: 0.941, blue: 0.988, alpha: 1)
/* Android XML */
<color name="brand">#EDF0FC</color>
/* Android Compose */
Color(0xFFEDF0FC)
/* Flutter */
Color(0xFFEDF0FC)
/* Python / OpenCV (BGR) */
(252, 240, 237)
/* Python / PIL (RGB) */
(237, 240, 252)
/* Java AWT */
new Color(237, 240, 252)
/* .NET */
Color.FromArgb(255, 237, 240, 252)
/* OpenGL / Unity (0–1) */
(0.9294f, 0.9412f, 0.9882f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{237,240,252}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #edf0fc 85%, white);
border-color: color-mix(in oklab, #edf0fc 40%, transparent);
/* theme-aware in one line */
color: light-dark(#12246D, #D3D8EE);
/* relative colour syntax */
--hover: hsl(from #edf0fc 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: #edf0fc;
  --brand-100: #E7EBF8;
  --brand-200: #C9D1F3;
  --brand-300: #9FAFEF;
  --brand-400: #6F87E7;
  --brand-500: #3F5FDF;
  --brand-600: #2346D2;
  --brand-700: #1D3AAF;
  --brand-800: #172F8C;
  --brand-900: #152565;
  --brand-950: #0D173F;
  --brand: #edf0fc;
  --brand-ink: #000000;
  --brand-surface: #F4F6FA;
  --brand-border: #C0C9ED;
  --brand-hover: #CED7F7;
  --brand-pressed: #B0BDF2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141724;
    --brand-ink: #D3D8EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#edf0fc',
        100: '#E7EBF8',
        200: '#C9D1F3',
        300: '#9FAFEF',
        400: '#6F87E7',
        500: '#3F5FDF',
        600: '#2346D2',
        700: '#1D3AAF',
        800: '#172F8C',
        900: '#152565',
        950: '#0D173F',
        DEFAULT: '#edf0fc',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #edf0fc,
  '100': #E7EBF8,
  '200': #C9D1F3,
  '300': #9FAFEF,
  '400': #6F87E7,
  '500': #3F5FDF,
  '600': #2346D2,
  '700': #1D3AAF,
  '800': #172F8C,
  '900': #152565,
  '950': #0D173F,
);
$brand-base: #edf0fc;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#edf0fc", "$type": "color" },
      "100": { "$value": "#E7EBF8", "$type": "color" },
      "200": { "$value": "#C9D1F3", "$type": "color" },
      "300": { "$value": "#9FAFEF", "$type": "color" },
      "400": { "$value": "#6F87E7", "$type": "color" },
      "500": { "$value": "#3F5FDF", "$type": "color" },
      "600": { "$value": "#2346D2", "$type": "color" },
      "700": { "$value": "#1D3AAF", "$type": "color" },
      "800": { "$value": "#172F8C", "$type": "color" },
      "900": { "$value": "#152565", "$type": "color" },
      "950": { "$value": "#0D173F", "$type": "color" }
    },
    "brandInk": { "$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 #edf0fc · 18.47:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.14:1
AA fail · AA large fail · AAA fail
Aa
Black text · 18.47:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #edf0fc as text scores 1.14:1 on white and 18.47:1 on black.
Best tinted ink on it, if plain black or white feels flat: #12246D at 12.32:1.

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
#506DE2 · 4.54:1
AA on white−36% L
#506DE2
The quick fox
#2447D6 · 7.13:1
AAA on white−47% L
#2447D6
The quick fox
#edf0fc · 18.47:1
AA on blackalready passes
#edf0fc
The quick fox
#edf0fc · 18.47:1
AAA on blackalready passes
#edf0fc

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #778EE8 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
#edf0fc on white: 1.14:1
AA ✗ fail · AA-large · AAA
Aa
#edf0fc on black: 18.47:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #edf0fc as text on that neutral, and that neutral as text on #edf0fc.

NeutralRatioBoth directions
White1.14:1AaAa
Slate 501.09:1AaAa
Slate 1001.04:1AaAa
Slate 2001.08:1AaAa
Slate 3001.31:1AaAa
Slate 4002.26:1AaAa
Slate 5004.19:1AaAa
Slate 6006.66:1AaAa
Slate 7009.11:1AaAa
Slate 80012.87:1AaAa
Slate 90015.70:1AaAa
Black18.47:1AaAa
Colour vision deficiency
true color
protanopia · #EDF1FD
deuteranopia · #ECF0FC
tritanopia · #EAF2F4

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. #edf0fc is pinned to step 50; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#edf0fc
#E7EBF8
#C9D1F3
#9FAFEF
#6F87E7
#3F5FDF
#2346D2
#1D3AAF
#172F8C
#152565
#0D173F
Base = 50Lightest = 50 · #edf0fcDarkest = 950 · #0D173FText step on white = 500
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 0.004 274.8);
  --brand-100: oklch(0.94 0.007 274.8);
  --brand-200: oklch(0.88 0.010 274.8);
  --brand-300: oklch(0.80 0.013 274.8);
  --brand-400: oklch(0.72 0.015 274.8);
  --brand-500: oklch(0.64 0.016 274.8);
  --brand-600: oklch(0.56 0.016 274.8);
  --brand-700: oklch(0.48 0.015 274.8);
  --brand-800: oklch(0.40 0.014 274.8);
  --brand-900: oklch(0.32 0.011 274.8);
  --brand-950: oklch(0.24 0.009 274.8);
}

Colors that work with #edf0fc

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#C0C9ED
Hairlines and dividers
Muted text#4B5B9B
Captions on the surface
Accent#AF6B1D
Second voice, not a rival
Dark variant#12246D
Hover, pressed, headers
Light variant#E9EDFB
Selected rows, tints
Dark surface#141724
Dark-mode background
Hover#CED7F7
One step down in lightness
Pressed#B0BDF2
Two steps down
Disabled#F3F3F7
Chroma pulled out
Focus ring#DAE1FB
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 #edf0fc

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 #12246D
Safe as a 1px border on white
No — use #778EE8

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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. 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
  • FormalityMedium
  • EnergyMedium-high
  • Weight4/100
  • 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#FCF9ED
Analogous left#EDF8FC
Analogous right#F2EDFC
Split-complement 1#FCF2ED
Split-complement 2#F8FCED
Triadic 1#FCEDF0
Triadic 2#F0FCED
Tetradic#FCEDF8
On the wheel
Base+30°−30°+120°+240°+180°228°

#edf0fc sits at 228°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red92.9%
Green94.1%
Blue98.8%
R · 0–255
237
0xed
G · 0–255
240
0xf0
B · 0–255
252
0xfc

CMYK percentages

Cyan6.0%
Magenta4.8%
Yellow0.0%
Key (black)1.2%

Total ink coverage is 12%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#edf0fc text on a black background

contrast 18.47:1

Card sample

#edf0fc text on a white background

contrast 1.14:1

Card sample

#edf0fc on grey

1.04:1

#edf0fc on its own surface

1.05:1

#edf0fc on its dark surface

15.68:1

CSS3 live lab

Text font color

The quick brown fox

color: #edf0fc;
Background color
Panel with #edf0fc background
background-color: #edf0fc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #edf0fc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(237, 240, 252, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(237, 240, 252, 0.45);
Border & gradient
Gradient panel
border: 3px solid #edf0fc;
background: linear-gradient(135deg, #edf0fc, #F4EDFC);
Gradient text

Gradient headline

background: linear-gradient(90deg, #edf0fc, #F8EDFC);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #edf0fc;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #edf0fc;
caret-color: #edf0fc;
Left rule
Pull quote or callout
border-left: 4px solid #edf0fc;
Ring + tint
Selected chip
background: #E9EDFB;
box-shadow: inset 0 0 0 2px #edf0fc;
Conic badge
68%
background: conic-gradient(#edf0fc 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #edf0fc 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(237, 240, 252, 0.5)
rgb(237 240 252 / 50%)
#edf0fc80
hsl(228 71% 96% / 50%)
color-mix(in srgb, #edf0fc 50%, transparent)
Alpha8-digit hexFlat on white
10%#edf0fc1a#FDFEFF
20%#edf0fc33#FBFCFE
40%#edf0fc66#F8F9FE
60%#edf0fc99#F4F6FD
80%#edf0fccc#F1F3FD

Gradients from #edf0fc

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, #EEF0FC, #edf0fc 45%, #12246D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #edf0fc, #E7D3F8);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #edf0fc, #FCF9ED);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F2F4FD 0%, #edf0fc 45%, #12246D 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%, #FFFFFF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #FFFFFF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #12246D 0%, transparent 65%), #edf0fc;

Monochromatic scale

Palettes built from #edf0fc

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.

#edf0fc 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

Very light tints can drop out on uncoated stock; check it at 100% size before signing off.

On screens

Very light values are indistinguishable from white on a dim phone screen outdoors. Give it a border if the boundary matters.

In dark mode

Usable as-is on a dark surface at 18.47:1.

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.

#edf0fc, answered

What color is #edf0fc?

#edf0fc is a pale vivid blue, closest to Ghost White (ΔE2000 2.9). It sits at 228° on the hue wheel with 71% saturation and 96% lightness, which reads as cool.

What is the RGB value of #edf0fc?

rgb(237, 240, 252) — 237 red, 240 green and 252 blue out of 255, or 92.9% / 94.1% / 98.8% by channel.

What is #edf0fc in HSL and HSV?

hsl(228, 71%, 96%) and hsv(228, 6%, 99%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #edf0fc a light or a dark color?

It is a light color. Relative luminance is 0.8735 and perceived brightness is 94%, so black text on it reaches 18.47:1.

Should I use black or white text on #edf0fc?

Black. It scores 18.47:1 against #edf0fc, versus 1.14:1 for white — AAA at any size.

Is #edf0fc accessible on a white background?

#edf0fc on white scores 1.14:1, which fails WCAG AA at every size. Darken it to #506DE2 to reach 4.5:1, or #2447D6 for 7:1.

What is the complementary color of #edf0fc?

#FCF9ED sits directly opposite on the wheel. Softer options are the split-complements #FCF2ED and #F8FCED, which give the same contrast with far less vibration.

What colors go well with #edf0fc?

For interface work: #F4F6FA as the surface, #C0C9ED for borders, #4B5B9B for secondary text, #AF6B1D as an accent and #12246D for hover and pressed states. For a palette, the analogous pair #EDF8FC and #F2EDFC stays calm, while #FCF9ED is the loudest partner.

What is #edf0fc in CMYK for printing?

cmyk(6%, 5%, 0%, 1%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #edf0fc warm or cool?

Cool — it scores 90 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F0EDFC; nudged cooler, #EDF4FC.

Which Tailwind color is closest to #edf0fc?

The cyan family — its 500 step is #06b6d4, ΔE2000 29.7 away. That is a visible difference, so define #edf0fc as a custom token rather than reaching for the built-in.

How do I use #edf0fc in Tailwind CSS?

Inline it as an arbitrary value with bg-[#edf0fc] or text-[#edf0fc], 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 #edf0fc with 50% opacity?

rgba(237, 240, 252, 0.5), or #edf0fc80 in eight-digit hex. Over white that composites to #F6F8FE; over black, #77787E.

Is #edf0fc a web-safe color?

No. The nearest web-safe colour is #FFFFFF, ΔE2000 6.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #edf0fc 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 #edf0fc?

The safest is same-hue elevation: linear-gradient(135deg, #EEF0FC, #edf0fc 45%, #12246D). For more colour, a short hue run to #E7D3F8 keeps it rich without turning muddy.

Work with #edf0fc in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #edf0fc at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.