#ECF5FB#ECF5FB

#ECF5FB is a very light, near-neutral cyan. Relative luminance 0.901; OKLCH L 96.5% C 0.013 H 236.6°. Best body text is #000000 at 19.02:1 contrast (WCAG AA passes).

Color values

HEX	#ECF5FB
RGB	rgb(236, 245, 251)
HSL	hsl(204, 65%, 95%)
HSV	hsv(204, 6%, 98%)
CMYK	cmyk(6%, 2.4%, 0%, 1.6%)
CIE-LAB	lab(96.04, -1.86, -3.91)
CIE-LCH	lch(96.04, 4.33, 244.54°)
OKLab	oklab(96.51% -0.0069 -0.0105)
OKLCH	oklch(96.51% 0.013 236.6)
XYZ	xyz(84.6536, 90.1021, 104.1797)
Luminance	0.9010 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF5FB #FBF2EC

analogous

#ECFBF9 #ECF5FB #ECEDFB

triadic

#ECF5FB #FBECF5 #F5FBEC

tetradic

#ECF5FB #F9ECFB #FBF2EC #EDFBEC

square

#ECF5FB #F9ECFB #FBF2EC #EDFBEC

split-complementary

#ECF5FB #FBECED #FBF9EC

monochromatic

#87C0E6 #B9DAF0 #E6F2FA #E6F2FA #E6F2FA

Accessibility & contrast

On white

1.10

#ECF5FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.02

#ECF5FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF5FB

19.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF5FB	#FFFFFF	#000000	##000000
##ECF5FB	1.00	1.10	19.02	19.02
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.02	21.00	1.00	1.00
##000000	19.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2F5FB

Deuteranopia (green-blind)

#F0F3FB

Tritanopia (blue-blind)

#E8F7F7

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecf5fb;
/* rgb */ color: rgb(236, 245, 251);
/* oklch */ color: oklch(96.5% 0.013 236.6);

Tailwind

colors: {
  custom: {
    50: '#f2f8fc',
    500: '#ecf5fb',
    950: '#000000',
  },
}

SCSS

$custom: #ecf5fb;
$custom-light: #f2f8fc;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf5fb",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 251
  },
  "hsl": {
    "h": 204,
    "s": 65.217,
    "l": 95.49
  },
  "oklch": {
    "l": 0.96513,
    "c": 0.01253,
    "h": 236.6
  },
  "luminance": 0.90103
}

Semantic roles & 50–950 ramp

primary

#ECF5FB

secondary

#E0C0AB

accent

#6118CD

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161717

muted

#858585

Preview Lab

Preview with #ECF5FB

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

Preview Lab → · Contrast checker → · Palette generator →