#ECF3FB#ECF3FB

#ECF3FB is a very light, near-neutral cyan. Relative luminance 0.889; OKLCH L 96.1% C 0.013 H 251.6°. Best body text is #000000 at 18.78:1 contrast (WCAG AA passes).

Color values

HEX	#ECF3FB
RGB	rgb(236, 243, 251)
HSL	hsl(212, 65%, 95%)
HSV	hsv(212, 6%, 98%)
CMYK	cmyk(6%, 3.2%, 0%, 1.6%)
CIE-LAB	lab(95.54, -0.84, -4.64)
CIE-LCH	lch(95.54, 4.72, 259.72°)
OKLab	oklab(96.12% -0.0041 -0.0124)
OKLCH	oklch(96.12% 0.013 251.6)
XYZ	xyz(84.0518, 88.8985, 103.9791)
Luminance	0.8890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF3FB #FBF4EC

analogous

#ECFAFB #ECF3FB #ECECFB

triadic

#ECF3FB #FBECF3 #F3FBEC

tetradic

#ECF3FB #FBECFA #FBF4EC #ECFBEC

square

#ECF3FB #FBECFA #FBF4EC #ECFBEC

split-complementary

#ECF3FB #FBECEC #FAFBEC

monochromatic

#87B3E6 #B9D3F0 #E6EFFA #E6EFFA #E6EFFA

Accessibility & contrast

On white

1.12

#ECF3FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.78

#ECF3FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF3FB

18.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF3FB	#FFFFFF	#000000	##000000
##ECF3FB	1.00	1.12	18.78	18.78
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.78	21.00	1.00	1.00
##000000	18.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F3FB

Deuteranopia (green-blind)

#EFF1FB

Tritanopia (blue-blind)

#E9F5F5

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecf3fb;
/* rgb */ color: rgb(236, 243, 251);
/* oklch */ color: oklch(96.1% 0.013 251.6);

Tailwind

colors: {
  custom: {
    50: '#f2f7fc',
    500: '#ecf3fb',
    950: '#000000',
  },
}

SCSS

$custom: #ecf3fb;
$custom-light: #f2f7fc;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf3fb",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 251
  },
  "hsl": {
    "h": 212,
    "s": 65.217,
    "l": 95.49
  },
  "oklch": {
    "l": 0.96119,
    "c": 0.01309,
    "h": 251.6
  },
  "luminance": 0.88899
}

Semantic roles & 50–950 ramp

primary

#ECF3FB

secondary

#E0C7AB

accent

#7918CD

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161717

muted

#858585

Preview Lab

Preview with #ECF3FB

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

Preview Lab → · Contrast checker → · Palette generator →