#ECF9FF#ECF9FF

#ECF9FF is a very light, near-neutral cyan. Relative luminance 0.928; OKLCH L 97.4% C 0.016 H 227.0°. Best body text is #000000 at 19.56:1 contrast (WCAG AA passes).

Color values

HEX	#ECF9FF
RGB	rgb(236, 249, 255)
HSL	hsl(199, 100%, 96%)
HSV	hsv(199, 7%, 100%)
CMYK	cmyk(7.5%, 2.4%, 0%, 0%)
CIE-LAB	lab(97.15, -3.14, -4.34)
CIE-LCH	lch(97.15, 5.36, 234.12°)
OKLab	oklab(97.42% -0.0109 -0.0116)
OKLCH	oklch(97.42% 0.016 227)
XYZ	xyz(86.5140, 92.8033, 107.9433)
Luminance	0.9280 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF9FF #FFF2EC

analogous

#ECFFFC #ECF9FF #ECF0FF

triadic

#ECF9FF #FFECF9 #F9FFEC

tetradic

#ECF9FF #FCECFF #FFF2EC #F0FFEC

square

#ECF9FF #FCECFF #FFF2EC #F0FFEC

split-complementary

#ECF9FF #FFECF0 #FFFCEC

monochromatic

#72D2FF #AFE6FF #E0F5FF #E0F5FF #E0F5FF

Accessibility & contrast

On white

1.07

#ECF9FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.56

#ECF9FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF9FF

19.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF9FF	#FFFFFF	#000000	##000000
##ECF9FF	1.00	1.07	19.56	19.56
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.56	21.00	1.00	1.00
##000000	19.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F6F8FF

Deuteranopia (green-blind)

#F3F6FF

Tritanopia (blue-blind)

#E7FBFB

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #ecf9ff;
/* rgb */ color: rgb(236, 249, 255);
/* oklch */ color: oklch(97.4% 0.016 227.0);

Tailwind

colors: {
  custom: {
    50: '#f2fbff',
    500: '#ecf9ff',
    950: '#000000',
  },
}

SCSS

$custom: #ecf9ff;
$custom-light: #f2fbff;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf9ff",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 255
  },
  "hsl": {
    "h": 198.947,
    "s": 100,
    "l": 96.275
  },
  "oklch": {
    "l": 0.9742,
    "c": 0.01593,
    "h": 227
  },
  "luminance": 0.92804
}

Semantic roles & 50–950 ramp

primary

#ECF9FF

secondary

#EEB9A1

accent

#4800E6

background

#FFFFFF

surface

#FEFFFF

border

#D6D7D7

text

#161718

muted

#858586

Preview Lab

Preview with #ECF9FF

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

Preview Lab → · Contrast checker → · Palette generator →