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#e4f8fd

a pale, electric cyan · cool · closest name: Azure

RGB
228, 248, 253
HSL
192°, 86%, 94%
CMYK
10, 2, 0, 1
Luminance
0.9072

At a glance

Every number on this page in one read: what #e4f8fd is made of, how bright it looks, and which way it leans.

Hex
#e4f8fd
Hue
192°
cyan
Saturation
86%
electric
Lightness
94%
pale
Brightness
99%
HSV value
Perceived
95%
weighted brightness
Luminance
0.9072
WCAG relative
Temperature
Cool
93/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
19.14:1
Closest name
Azure
ΔE2000 3
Where it sits
Hue192° of 360°
Saturation86%
Lightness94%
Temperature
Warm ← → Cool93% cool

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

Every format

HEX#e4f8fd
RGBrgb(228, 248, 253)
HSLhsl(192, 86%, 94%)
CMYKcmyk(10%, 2%, 0%, 1%)
LABlab(96.3 -5.6 -4.6)
LCHlch(96.3 7.2 219.8)
OKLCHoklch(0.966 0.022 214.4)
Decimal15005949
Display P3color(display-p3 0.894 0.973 0.992)

Copy-ready code

/* CSS */
color: #e4f8fd;
background-color: #e4f8fd;
/* Tailwind (arbitrary) */
class="text-[#e4f8fd] bg-[#e4f8fd]"
/* SCSS */
$brand: #e4f8fd;
/* SwiftUI */
Color(red: 0.894, green: 0.973, blue: 0.992)
/* Android */
Color.parseColor("#e4f8fd")
/* Flutter */
Color(0xFFE4F8FD)
/* Python / OpenCV (BGR) */
(253, 248, 228)

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 #e4f8fd · 19.14:1
Use #000000AAA at every size.
Aa
White text · 1.10:1
AA fail · AA large fail · AAA fail
Aa
Black text · 19.14:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #e4f8fd as text scores 1.10:1 on white and 19.14:1 on black.

Accessibility — WCAG contrast

Aa
#e4f8fd on white: 1.10:1
AA ✗ fail · AA-large · AAA
Aa
#e4f8fd on black: 19.14:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #F4F6FD
deuteranopia · #F0F3FD
tritanopia · #DDFAF9

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #e4f8fd 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.

#F2FAFD
#e4f8fd
#C5EDF7
#97E4F7
#62D6F3
#2EC9F0
#11BAE4
#0E9BBE
#0B7C98
#0D5A6E
#083845
Base = 100Lightest = 50 · #F2FAFDDarkest = 950 · #083845
:root {
  --brand-50: #F2FAFD;
  --brand-100: #e4f8fd;
  --brand-200: #C5EDF7;
  --brand-300: #97E4F7;
  --brand-400: #62D6F3;
  --brand-500: #2EC9F0;
  --brand-600: #11BAE4;
  --brand-700: #0E9BBE;
  --brand-800: #0B7C98;
  --brand-900: #0D5A6E;
  --brand-950: #083845;
  --brand: #e4f8fd;
  --brand-ink: #000000;
}

Colors that work with #e4f8fd

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#F4F9FA
Tinted page background
Border#C0E4ED
Hairlines and dividers
Muted text#4B8B9B
Captions on the surface
Accent#C50715
Second voice, not a rival
Dark variant#096177
Hover, pressed, headers
Light variant#E7F9FD
Selected rows, tints
Dark surface#142124
Dark-mode background
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

How to use #e4f8fd

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
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate

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#FDE9E4
Analogous left#E4FDF5
Analogous right#E4EBFD
Split-complement 1#FDE4EB
Split-complement 2#FDF5E4
Triadic 1#FDE4F8
Triadic 2#F8FDE4
Tetradic#F5E4FD

RGB percentages

Red89.4%
Green97.3%
Blue99.2%

CMYK percentages

Cyan9.9%
Magenta2.0%
Yellow0.0%
Key (black)0.8%

Color previews

#e4f8fd text on a black background

contrast 19.14:1

Card sample

#e4f8fd text on a white background

contrast 1.10:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #e4f8fd;
Background color
Panel with #e4f8fd background
background-color: #e4f8fd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #e4f8fd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(228, 248, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(228, 248, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #e4f8fd;
background: linear-gradient(135deg, #e4f8fd, #E4E7FD);

Monochromatic scale

Palettes built from #e4f8fd

Shades — darker

Tints — lighter

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.

#e4f8fd in the real world

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

Industries
TechnologyTravelHealthcareMedia
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

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

#e4f8fd, answered

What color is #e4f8fd?

#e4f8fd is a pale electric cyan, closest to Azure (ΔE2000 3). It sits at 192° on the hue wheel with 86% saturation and 94% lightness, which reads as cool.

What is the RGB value of #e4f8fd?

rgb(228, 248, 253) — 228 red, 248 green and 253 blue out of 255, or 89.4% / 97.3% / 99.2% by channel.

Is #e4f8fd a light or a dark color?

It is a light color. Relative luminance is 0.9072 and perceived brightness is 95%, so black text on it reaches 19.14:1.

Should I use black or white text on #e4f8fd?

Black. It scores 19.14:1 against #e4f8fd, versus 1.10:1 for white — AAA at any size.

What is the complementary color of #e4f8fd?

#FDE9E4 sits directly opposite on the wheel. Softer options are the split-complements #FDE4EB and #FDF5E4, which give the same contrast with far less vibration.

What colors go well with #e4f8fd?

For interface work: #F4F9FA as the surface, #C0E4ED for borders, #4B8B9B for secondary text, #C50715 as an accent and #096177 for hover and pressed states. For a palette, the analogous pair #E4FDF5 and #E4EBFD stays calm, while #FDE9E4 is the loudest partner.

What is #e4f8fd in CMYK for printing?

cmyk(10%, 2%, 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 #e4f8fd warm or cool?

Cool — it scores 93 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #E4FDF9; nudged cooler, #E4F1FD.

Work with #e4f8fd in the Color Lab