#EFF9FB#EFF9FB

#EFF9FB is a very light, near-neutral cyan. Relative luminance 0.931; OKLCH L 97.5% C 0.011 H 211.0°. Best body text is #000000 at 19.61:1 contrast (WCAG AA passes).

Color values

HEX	#EFF9FB
RGB	rgb(239, 249, 251)
HSL	hsl(190, 60%, 96%)
HSV	hsv(190, 5%, 98%)
CMYK	cmyk(4.8%, 0.8%, 0%, 1.6%)
CIE-LAB	lab(97.25, -2.92, -2.10)
CIE-LCH	lch(97.25, 3.59, 215.73°)
OKLab	oklab(97.52% -0.0094 -0.0056)
OKLCH	oklch(97.52% 0.011 211)
XYZ	xyz(86.8814, 93.0665, 104.6345)
Luminance	0.9307 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF9FB #FBF1EF

analogous

#EFFBF7 #EFF9FB #EFF3FB

triadic

#EFF9FB #FBEFF9 #F9FBEF

tetradic

#EFF9FB #F7EFFB #FBF1EF #F3FBEF

square

#EFF9FB #F7EFFB #FBF1EF #F3FBEF

split-complementary

#EFF9FB #FBEFF3 #FBF7EF

monochromatic

#8DD4E3 #BEE7EF #E7F6F9 #E7F6F9 #E7F6F9

Accessibility & contrast

On white

1.07

#EFF9FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.61

#EFF9FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF9FB

19.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF9FB	#FFFFFF	#000000	##000000
##EFF9FB	1.00	1.07	19.61	19.61
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.61	21.00	1.00	1.00
##000000	19.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7F8FB

Deuteranopia (green-blind)

#F5F6FB

Tritanopia (blue-blind)

#ECFAFA

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #eff9fb;
/* rgb */ color: rgb(239, 249, 251);
/* oklch */ color: oklch(97.5% 0.011 211.0);

Tailwind

colors: {
  custom: {
    50: '#f4fbfc',
    500: '#eff9fb',
    950: '#000000',
  },
}

SCSS

$custom: #eff9fb;
$custom-light: #f4fbfc;
$custom-dark: #000000;

JSON

{
  "hex": "#eff9fb",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 251
  },
  "hsl": {
    "h": 190,
    "s": 60,
    "l": 96.078
  },
  "oklch": {
    "l": 0.97522,
    "c": 0.01092,
    "h": 211
  },
  "luminance": 0.93067
}

Semantic roles & 50–950 ramp

primary

#EFF9FB

secondary

#DFB7B0

accent

#3A1EC8

background

#FFFFFF

surface

#FEFFFF

border

#D6D7D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF9FB

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

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