#ECF1FF#ECF1FF

#ECF1FF is a very light, near-neutral blue. Relative luminance 0.880; OKLCH L 95.8% C 0.020 H 270.2°. Best body text is #000000 at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#ECF1FF
RGB	rgb(236, 241, 255)
HSL	hsl(224, 100%, 96%)
HSV	hsv(224, 7%, 100%)
CMYK	cmyk(7.5%, 5.5%, 0%, 0%)
CIE-LAB	lab(95.15, 0.93, -7.29)
CIE-LCH	lch(95.15, 7.35, 277.26°)
OKLab	oklab(95.85% 0.0001 -0.0195)
OKLCH	oklch(95.85% 0.02 270.2)
XYZ	xyz(84.0937, 87.9629, 107.1365)
Luminance	0.8796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF1FF #FFFAEC

analogous

#ECFBFF #ECF1FF #F1ECFF

triadic

#ECF1FF #FFECF1 #F1FFEC

tetradic

#ECF1FF #FFECFB #FFFAEC #ECFFF1

square

#ECF1FF #FFECFB #FFFAEC #ECFFF1

split-complementary

#ECF1FF #FFF1EC #FBFFEC

monochromatic

#7297FF #AFC4FF #E0E8FF #E0E8FF #E0E8FF

Accessibility & contrast

On white

1.13

#ECF1FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.59

#ECF1FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF1FF

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF1FF	#FFFFFF	#000000	##000000
##ECF1FF	1.00	1.13	18.59	18.59
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.59	21.00	1.00	1.00
##000000	18.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDF2FF

Deuteranopia (green-blind)

#ECF0FF

Tritanopia (blue-blind)

#E8F4F5

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecf1ff;
/* rgb */ color: rgb(236, 241, 255);
/* oklch */ color: oklch(95.8% 0.020 270.2);

Tailwind

colors: {
  custom: {
    50: '#f2f5ff',
    500: '#ecf1ff',
    950: '#000000',
  },
}

SCSS

$custom: #ecf1ff;
$custom-light: #f2f5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf1ff",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 255
  },
  "hsl": {
    "h": 224.211,
    "s": 100,
    "l": 96.275
  },
  "oklch": {
    "l": 0.95846,
    "c": 0.01954,
    "h": 270.2
  },
  "luminance": 0.87963
}

Semantic roles & 50–950 ramp

primary

#ECF1FF

secondary

#EEDAA1

accent

#A900E6

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161718

muted

#858586

Preview Lab

Preview with #ECF1FF

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

Preview Lab → · Contrast checker → · Palette generator →