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blue · cool

#eeeff9

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

Token name suggestion: Frost Sapphire

RGB
238, 239, 249
HSL
235°, 48%, 96%
CMYK
4, 4, 0, 2
Luminance
0.8675

#eeeff9 is a pale vivid blue, 235° on the wheel and 86/100 on the cool side. Put black text on it (18.35:1). As text it scores 1.14:1 on white — use #636CC8 instead. Nearest name is Ghost White, nearest Tailwind family is cyan.

hsl(235 48% 96%)rgb(238 239 249)Base step 50AAA inkCool

At a glance

Every number on this page in one read: what #eeeff9 is made of, how bright it looks, and which way it leans.

Hex
#eeeff9
Hue
235°
blue
Saturation
48%
vivid
Lightness
96%
pale
Brightness
98%
HSV value
Perceived
94%
weighted brightness
Luminance
0.8675
WCAG relative
Temperature
Cool
86/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
18.35:1
Closest name
Ghost White
ΔE2000 2.3
Chroma
5.2
LCH, 0–130ish
OKLCH L
0.954
perceptual lightness
Tailwind
cyan
500 · ΔE 30.8
Web-safe
#FFFFFF
nearest of 216
Where it sits
Hue235° of 360°
Saturation48%
Lightness96%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #eeeff9.

Temperature
Warm ← → Cool86% 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#eeeff9
HEX (8-digit)#eeeff9ff
RGBrgb(238, 239, 249)
RGBArgba(238, 239, 249, 1)
HSLhsl(235, 48%, 96%)
HSV / HSBhsv(235, 4%, 98%)
HWBhwb(235 93% 2%)
CMYKcmyk(4%, 4%, 0%, 2%)
LABlab(94.6 1.5 -4.9)
LCHlch(94.6 5.2 286.7)
OKLCHoklch(0.954 0.013 281.6)
XYZ (D65)xyz(83.22, 86.75, 101.96)
Decimal15659001
Display P3color(display-p3 0.933 0.937 0.976)
Web-safe#FFFFFF

Copy-ready code

every platformclick to select
/* CSS */
color: #eeeff9;
background-color: #eeeff9;
/* CSS custom property */
--brand: #eeeff9;
/* Tailwind (arbitrary) */
class="text-[#eeeff9] bg-[#eeeff9]"
/* SCSS */
$brand: #eeeff9;
/* SwiftUI */
Color(red: 0.933, green: 0.937, blue: 0.976)
/* UIKit */
UIColor(red: 0.933, green: 0.937, blue: 0.976, alpha: 1)
/* Android XML */
<color name="brand">#EEEFF9</color>
/* Android Compose */
Color(0xFFEEEFF9)
/* Flutter */
Color(0xFFEEEFF9)
/* Python / OpenCV (BGR) */
(249, 239, 238)
/* Python / PIL (RGB) */
(238, 239, 249)
/* Java AWT */
new Color(238, 239, 249)
/* .NET */
Color.FromArgb(255, 238, 239, 249)
/* OpenGL / Unity (0–1) */
(0.9333f, 0.9373f, 0.9765f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{238,239,249}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #eeeff9 85%, white);
border-color: color-mix(in oklab, #eeeff9 40%, transparent);
/* theme-aware in one line */
color: light-dark(#21275E, #D3D5EE);
/* relative colour syntax */
--hover: hsl(from #eeeff9 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: #eeeff9;
  --brand-100: #EAEBF5;
  --brand-200: #D0D2EC;
  --brand-300: #ACB1E2;
  --brand-400: #838AD3;
  --brand-500: #5963C4;
  --brand-600: #404BB5;
  --brand-700: #353E97;
  --brand-800: #2B3279;
  --brand-900: #222758;
  --brand-950: #151937;
  --brand: #eeeff9;
  --brand-ink: #000000;
  --brand-surface: #F4F5FA;
  --brand-border: #C3C6EA;
  --brand-hover: #D4D6F0;
  --brand-pressed: #B9BDE6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141524;
    --brand-ink: #D3D5EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#eeeff9',
        100: '#EAEBF5',
        200: '#D0D2EC',
        300: '#ACB1E2',
        400: '#838AD3',
        500: '#5963C4',
        600: '#404BB5',
        700: '#353E97',
        800: '#2B3279',
        900: '#222758',
        950: '#151937',
        DEFAULT: '#eeeff9',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #eeeff9,
  '100': #EAEBF5,
  '200': #D0D2EC,
  '300': #ACB1E2,
  '400': #838AD3,
  '500': #5963C4,
  '600': #404BB5,
  '700': #353E97,
  '800': #2B3279,
  '900': #222758,
  '950': #151937,
);
$brand-base: #eeeff9;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#eeeff9", "$type": "color" },
      "100": { "$value": "#EAEBF5", "$type": "color" },
      "200": { "$value": "#D0D2EC", "$type": "color" },
      "300": { "$value": "#ACB1E2", "$type": "color" },
      "400": { "$value": "#838AD3", "$type": "color" },
      "500": { "$value": "#5963C4", "$type": "color" },
      "600": { "$value": "#404BB5", "$type": "color" },
      "700": { "$value": "#353E97", "$type": "color" },
      "800": { "$value": "#2B3279", "$type": "color" },
      "900": { "$value": "#222758", "$type": "color" },
      "950": { "$value": "#151937", "$type": "color" }
    },
    "brandInk": { "$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 #eeeff9 · 18.35:1
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 · 18.35:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #eeeff9 as text scores 1.14:1 on white and 18.35:1 on black.
Best tinted ink on it, if plain black or white feels flat: #21275E at 12.10:1.

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
#636CC8 · 4.66:1
AA on white−37% L
#636CC8
The quick fox
#414BB7 · 7.20:1
AAA on white−47% L
#414BB7
The quick fox
#eeeff9 · 18.35:1
AA on blackalready passes
#eeeff9
The quick fox
#eeeff9 · 18.35:1
AAA on blackalready passes
#eeeff9

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #888FD5 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
#eeeff9 on white: 1.14:1
AA ✗ fail · AA-large · AAA
Aa
#eeeff9 on black: 18.35:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #eeeff9 as text on that neutral, and that neutral as text on #eeeff9.

NeutralRatioBoth directions
White1.14:1AaAa
Slate 501.09:1AaAa
Slate 1001.04:1AaAa
Slate 2001.08:1AaAa
Slate 3001.30:1AaAa
Slate 4002.24:1AaAa
Slate 5004.16:1AaAa
Slate 6006.62:1AaAa
Slate 7009.05:1AaAa
Slate 80012.78:1AaAa
Slate 90015.60:1AaAa
Black18.35:1AaAa
Colour vision deficiency
true color
protanopia · #EDF0FA
deuteranopia · #ECEFF9
tritanopia · #ECF1F2

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. #eeeff9 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.

#eeeff9
#EAEBF5
#D0D2EC
#ACB1E2
#838AD3
#5963C4
#404BB5
#353E97
#2B3279
#222758
#151937
Base = 50Lightest = 50 · #eeeff9Darkest = 950 · #151937Text 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 0.003 281.6);
  --brand-100: oklch(0.94 0.005 281.6);
  --brand-200: oklch(0.88 0.008 281.6);
  --brand-300: oklch(0.80 0.010 281.6);
  --brand-400: oklch(0.72 0.012 281.6);
  --brand-500: oklch(0.64 0.013 281.6);
  --brand-600: oklch(0.56 0.013 281.6);
  --brand-700: oklch(0.48 0.013 281.6);
  --brand-800: oklch(0.40 0.011 281.6);
  --brand-900: oklch(0.32 0.009 281.6);
  --brand-950: oklch(0.24 0.007 281.6);
}

Colors that work with #eeeff9

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#F4F5FA
Tinted page background
Border#C3C6EA
Hairlines and dividers
Muted text#4B529B
Captions on the surface
Accent#977335
Second voice, not a rival
Dark variant#21275E
Hover, pressed, headers
Light variant#ECEDF8
Selected rows, tints
Dark surface#141524
Dark-mode background
Hover#D4D6F0
One step down in lightness
Pressed#B9BDE6
Two steps down
Disabled#F3F3F7
Chroma pulled out
Focus ring#DFE1F6
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 #eeeff9

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 #21275E
Safe as a 1px border on white
No — use #888FD5

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
  • Weight5/100
  • 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#F9F8EE
Analogous left#EEF5F9
Analogous right#F3EEF9
Split-complement 1#F9F3EE
Split-complement 2#F5F9EE
Triadic 1#F9EEEF
Triadic 2#EFF9EE
Tetradic#F9EEF5
On the wheel
Base+30°−30°+120°+240°+180°235°

#eeeff9 sits at 235°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red93.3%
Green93.7%
Blue97.6%
R · 0–255
238
0xee
G · 0–255
239
0xef
B · 0–255
249
0xf9

CMYK percentages

Cyan4.4%
Magenta4.0%
Yellow0.0%
Key (black)2.4%

Total ink coverage is 11%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#eeeff9 text on a black background

contrast 18.35:1

Card sample

#eeeff9 text on a white background

contrast 1.14:1

Card sample

#eeeff9 on grey

1.04:1

#eeeff9 on its own surface

1.05:1

#eeeff9 on its dark surface

15.79:1

CSS3 live lab

Text font color

The quick brown fox

color: #eeeff9;
Background color
Panel with #eeeff9 background
background-color: #eeeff9;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #eeeff9;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(238, 239, 249, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(238, 239, 249, 0.45);
Border & gradient
Gradient panel
border: 3px solid #eeeff9;
background: linear-gradient(135deg, #eeeff9, #F4EEF9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #eeeff9, #F7EEF9);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #eeeff9;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #eeeff9;
caret-color: #eeeff9;
Left rule
Pull quote or callout
border-left: 4px solid #eeeff9;
Ring + tint
Selected chip
background: #ECEDF8;
box-shadow: inset 0 0 0 2px #eeeff9;
Conic badge
68%
background: conic-gradient(#eeeff9 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #eeeff9 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(238, 239, 249, 0.5)
rgb(238 239 249 / 50%)
#eeeff980
hsl(235 48% 96% / 50%)
color-mix(in srgb, #eeeff9 50%, transparent)
Alpha8-digit hexFlat on white
10%#eeeff91a#FDFDFE
20%#eeeff933#FCFCFE
40%#eeeff966#F8F9FD
60%#eeeff999#F5F5FB
80%#eeeff9cc#F1F2FA

Gradients from #eeeff9

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, #F0F1FA, #eeeff9 45%, #21275E);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #eeeff9, #E8D7F1);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #eeeff9, #F9F8EE);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F4F4FB 0%, #eeeff9 45%, #21275E 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F5FA, #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%, #21275E 0%, transparent 65%), #eeeff9;

Monochromatic scale

Palettes built from #eeeff9

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.

#eeeff9 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 18.35:1.

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.

#eeeff9, answered

What color is #eeeff9?

#eeeff9 is a pale vivid blue, closest to Ghost White (ΔE2000 2.3). It sits at 235° on the hue wheel with 48% saturation and 96% lightness, which reads as cool.

What is the RGB value of #eeeff9?

rgb(238, 239, 249) — 238 red, 239 green and 249 blue out of 255, or 93.3% / 93.7% / 97.6% by channel.

What is #eeeff9 in HSL and HSV?

hsl(235, 48%, 96%) and hsv(235, 4%, 98%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #eeeff9 a light or a dark color?

It is a light color. Relative luminance is 0.8675 and perceived brightness is 94%, so black text on it reaches 18.35:1.

Should I use black or white text on #eeeff9?

Black. It scores 18.35:1 against #eeeff9, versus 1.14:1 for white — AAA at any size.

Is #eeeff9 accessible on a white background?

#eeeff9 on white scores 1.14:1, which fails WCAG AA at every size. Darken it to #636CC8 to reach 4.5:1, or #414BB7 for 7:1.

What is the complementary color of #eeeff9?

#F9F8EE sits directly opposite on the wheel. Softer options are the split-complements #F9F3EE and #F5F9EE, which give the same contrast with far less vibration.

What colors go well with #eeeff9?

For interface work: #F4F5FA as the surface, #C3C6EA for borders, #4B529B for secondary text, #977335 as an accent and #21275E for hover and pressed states. For a palette, the analogous pair #EEF5F9 and #F3EEF9 stays calm, while #F9F8EE is the loudest partner.

What is #eeeff9 in CMYK for printing?

cmyk(4%, 4%, 0%, 2%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #eeeff9 warm or cool?

Cool — it scores 86 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F1EEF9; nudged cooler, #EEF3F9.

Which Tailwind color is closest to #eeeff9?

The cyan family — its 500 step is #06b6d4, ΔE2000 30.8 away. That is a visible difference, so define #eeeff9 as a custom token rather than reaching for the built-in.

How do I use #eeeff9 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#eeeff9] or text-[#eeeff9], 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 #eeeff9 with 50% opacity?

rgba(238, 239, 249, 0.5), or #eeeff980 in eight-digit hex. Over white that composites to #F7F7FC; over black, #77787D.

Is #eeeff9 a web-safe color?

No. The nearest web-safe colour is #FFFFFF, ΔE2000 5.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #eeeff9 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 #eeeff9?

The safest is same-hue elevation: linear-gradient(135deg, #F0F1FA, #eeeff9 45%, #21275E). For more colour, a short hue run to #E8D7F1 keeps it rich without turning muddy.

Work with #eeeff9 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #eeeff9 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.