#ECF0FF#ECF0FF

#ECF0FF is a very light, muted blue. Relative luminance 0.874; OKLCH L 95.7% C 0.021 H 274.0°. Best body text is #000000 at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#ECF0FF
RGB	rgb(236, 240, 255)
HSL	hsl(227, 100%, 96%)
HSV	hsv(227, 7%, 100%)
CMYK	cmyk(7.5%, 5.9%, 0%, 0%)
CIE-LAB	lab(94.90, 1.44, -7.66)
CIE-LCH	lch(94.90, 7.80, 280.65°)
OKLab	oklab(95.65% 0.0014 -0.0205)
OKLCH	oklch(95.65% 0.021 274)
XYZ	xyz(83.7986, 87.3725, 107.0381)
Luminance	0.8737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF0FF #FFFBEC

analogous

#ECFAFF #ECF0FF #F2ECFF

triadic

#ECF0FF #FFECF0 #F0FFEC

tetradic

#ECF0FF #FFECFA #FFFBEC #ECFFF2

square

#ECF0FF #FFECFA #FFFBEC #ECFFF2

split-complementary

#ECF0FF #FFF2EC #FAFFEC

monochromatic

#728FFF #AFC0FF #E0E7FF #E0E7FF #E0E7FF

Accessibility & contrast

On white

1.14

#ECF0FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.47

#ECF0FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF0FF

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF0FF	#FFFFFF	#000000	##000000
##ECF0FF	1.00	1.14	18.47	18.47
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.47	21.00	1.00	1.00
##000000	18.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ECF1FF

Deuteranopia (green-blind)

#EBF0FF

Tritanopia (blue-blind)

#E8F3F5

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf0ff;
/* rgb */ color: rgb(236, 240, 255);
/* oklch */ color: oklch(95.7% 0.021 274.0);

Tailwind

colors: {
  custom: {
    50: '#f2f4ff',
    500: '#ecf0ff',
    950: '#000000',
  },
}

SCSS

$custom: #ecf0ff;
$custom-light: #f2f4ff;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf0ff",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 255
  },
  "hsl": {
    "h": 227.368,
    "s": 100,
    "l": 96.275
  },
  "oklch": {
    "l": 0.9565,
    "c": 0.02058,
    "h": 274
  },
  "luminance": 0.87373
}

Semantic roles & 50–950 ramp

primary

#ECF0FF

secondary

#EEDEA1

accent

#B500E6

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161718

muted

#858586

Preview Lab

Preview with #ECF0FF

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

Preview Lab → · Contrast checker → · Palette generator →