#ECF4FF#ECF4FF

#ECF4FF is a very light, near-neutral cyan. Relative luminance 0.898; OKLCH L 96.4% C 0.017 H 256.3°. Best body text is #000000 at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#ECF4FF
RGB	rgb(236, 244, 255)
HSL	hsl(215, 100%, 96%)
HSV	hsv(215, 7%, 100%)
CMYK	cmyk(7.5%, 4.3%, 0%, 0%)
CIE-LAB	lab(95.89, -0.60, -6.19)
CIE-LCH	lch(95.89, 6.22, 264.45°)
OKLab	oklab(96.43% -0.004 -0.0166)
OKLCH	oklch(96.43% 0.017 256.3)
XYZ	xyz(84.9891, 89.7535, 107.4350)
Luminance	0.8975 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF4FF #FFF7EC

analogous

#ECFEFF #ECF4FF #EEECFF

triadic

#ECF4FF #FFECF4 #F4FFEC

tetradic

#ECF4FF #FFECFE #FFF7EC #ECFFEE

square

#ECF4FF #FFECFE #FFF7EC #ECFFEE

split-complementary

#ECF4FF #FFEEEC #FEFFEC

monochromatic

#72ADFF #AFD1FF #E0EDFF #E0EDFF #E0EDFF

Accessibility & contrast

On white

1.11

#ECF4FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.95

#ECF4FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF4FF

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF4FF	#FFFFFF	#000000	##000000
##ECF4FF	1.00	1.11	18.95	18.95
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.95	21.00	1.00	1.00
##000000	18.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F4FF

Deuteranopia (green-blind)

#EEF2FF

Tritanopia (blue-blind)

#E8F6F7

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecf4ff;
/* rgb */ color: rgb(236, 244, 255);
/* oklch */ color: oklch(96.4% 0.017 256.3);

Tailwind

colors: {
  custom: {
    50: '#f2f7ff',
    500: '#ecf4ff',
    950: '#000000',
  },
}

SCSS

$custom: #ecf4ff;
$custom-light: #f2f7ff;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf4ff",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 255
  },
  "hsl": {
    "h": 214.737,
    "s": 100,
    "l": 96.275
  },
  "oklch": {
    "l": 0.96434,
    "c": 0.01707,
    "h": 256.3
  },
  "luminance": 0.89754
}

Semantic roles & 50–950 ramp

primary

#ECF4FF

secondary

#EECEA1

accent

#8500E6

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161718

muted

#858586

Preview Lab

Preview with #ECF4FF

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

Preview Lab → · Contrast checker → · Palette generator →