#E4F3FF#E4F3FF

#E4F3FF is a very light, muted cyan. Relative luminance 0.878; OKLCH L 95.7% C 0.023 H 241.9°. Best body text is #000000 at 18.56:1 contrast (WCAG AA passes).

Color values

HEX	#E4F3FF
RGB	rgb(228, 243, 255)
HSL	hsl(207, 100%, 95%)
HSV	hsv(207, 11%, 100%)
CMYK	cmyk(10.6%, 4.7%, 0%, 0%)
CIE-LAB	lab(95.08, -2.64, -7.45)
CIE-LCH	lch(95.08, 7.90, 250.49°)
OKLab	oklab(95.66% -0.0107 -0.02)
OKLCH	oklch(95.66% 0.023 241.9)
XYZ	xyz(82.0915, 87.8140, 107.2132)
Luminance	0.8781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E4F3FF #FFF0E4

analogous

#E4FFFE #E4F3FF #E4E6FF

triadic

#E4F3FF #FFE4F3 #F3FFE4

tetradic

#E4F3FF #FEE4FF #FFF0E4 #E6FFE4

square

#E4F3FF #FEE4FF #FFF0E4 #E6FFE4

split-complementary

#E4F3FF #FFE4E6 #FFFEE4

monochromatic

#6ABDFF #A7D8FF #E0F1FF #E0F1FF #E0F1FF

Accessibility & contrast

On white

1.13

#E4F3FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.56

#E4F3FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E4F3FF

18.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E4F3FF	#FFFFFF	#000000	##000000
##E4F3FF	1.00	1.13	18.56	18.56
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.56	21.00	1.00	1.00
##000000	18.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EEF3FF

Deuteranopia (green-blind)

#EBF0FF

Tritanopia (blue-blind)

#DDF6F7

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #e4f3ff;
/* rgb */ color: rgb(228, 243, 255);
/* oklch */ color: oklch(95.7% 0.023 241.9);

Tailwind

colors: {
  custom: {
    50: '#ecf7ff',
    500: '#e4f3ff',
    950: '#000000',
  },
}

SCSS

$custom: #e4f3ff;
$custom-light: #ecf7ff;
$custom-dark: #000000;

JSON

{
  "hex": "#e4f3ff",
  "rgb": {
    "r": 228,
    "g": 243,
    "b": 255
  },
  "hsl": {
    "h": 206.667,
    "s": 100,
    "l": 94.706
  },
  "oklch": {
    "l": 0.95656,
    "c": 0.02271,
    "h": 241.9
  },
  "luminance": 0.87815
}

Semantic roles & 50–950 ramp

primary

#E4F3FF

secondary

#EDBF9A

accent

#6600E6

background

#FEFFFF

surface

#FDFEFF

border

#D5D6D7

text

#161718

muted

#848586

Preview Lab

Preview with #E4F3FF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →