#ECF4FB#ECF4FB

#ECF4FB is a very light, near-neutral cyan. Relative luminance 0.895; OKLCH L 96.3% C 0.013 H 244.2°. Best body text is #000000 at 18.90:1 contrast (WCAG AA passes).

Color values

HEX	#ECF4FB
RGB	rgb(236, 244, 251)
HSL	hsl(208, 65%, 95%)
HSV	hsv(208, 6%, 98%)
CMYK	cmyk(6%, 2.8%, 0%, 1.6%)
CIE-LAB	lab(95.79, -1.35, -4.28)
CIE-LCH	lch(95.79, 4.48, 252.46°)
OKLab	oklab(96.32% -0.0055 -0.0114)
OKLCH	oklch(96.32% 0.013 244.2)
XYZ	xyz(84.3519, 89.4986, 104.0791)
Luminance	0.8950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF4FB #FBF3EC

analogous

#ECFBFA #ECF4FB #ECECFB

triadic

#ECF4FB #FBECF4 #F4FBEC

tetradic

#ECF4FB #FAECFB #FBF3EC #ECFBEC

square

#ECF4FB #FAECFB #FBF3EC #ECFBEC

split-complementary

#ECF4FB #FBECEC #FBFAEC

monochromatic

#87B9E6 #B9D7F0 #E6F0FA #E6F0FA #E6F0FA

Accessibility & contrast

On white

1.11

#ECF4FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.90

#ECF4FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF4FB

18.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF4FB	#FFFFFF	#000000	##000000
##ECF4FB	1.00	1.11	18.90	18.90
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.90	21.00	1.00	1.00
##000000	18.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1F4FB

Deuteranopia (green-blind)

#EFF2FB

Tritanopia (blue-blind)

#E9F6F6

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecf4fb;
/* rgb */ color: rgb(236, 244, 251);
/* oklch */ color: oklch(96.3% 0.013 244.2);

Tailwind

colors: {
  custom: {
    50: '#f2f7fc',
    500: '#ecf4fb',
    950: '#000000',
  },
}

SCSS

$custom: #ecf4fb;
$custom-light: #f2f7fc;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf4fb",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 251
  },
  "hsl": {
    "h": 208,
    "s": 65.217,
    "l": 95.49
  },
  "oklch": {
    "l": 0.96316,
    "c": 0.0127,
    "h": 244.2
  },
  "luminance": 0.89499
}

Semantic roles & 50–950 ramp

primary

#ECF4FB

secondary

#E0C4AB

accent

#6D18CD

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161717

muted

#858585

Preview Lab

Preview with #ECF4FB

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

Preview Lab → · Contrast checker → · Palette generator →