#EFF4F8#EFF4F8

#EFF4F8 is a very light, near-neutral cyan. Relative luminance 0.898; OKLCH L 96.5% C 0.008 H 241.6°. Best body text is #000000 at 18.97:1 contrast (WCAG AA passes).

Color values

HEX	#EFF4F8
RGB	rgb(239, 244, 248)
HSL	hsl(207, 39%, 95%)
HSV	hsv(207, 4%, 97%)
CMYK	cmyk(3.6%, 1.6%, 0%, 2.7%)
CIE-LAB	lab(95.93, -0.93, -2.50)
CIE-LCH	lch(95.93, 2.66, 249.59°)
OKLab	oklab(96.45% -0.0036 -0.0067)
OKLCH	oklch(96.45% 0.008 241.6)
XYZ	xyz(84.8874, 89.8290, 101.6553)
Luminance	0.8983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF4F8 #F8F3EF

analogous

#EFF8F7 #EFF4F8 #EFEFF8

triadic

#EFF4F8 #F8EFF4 #F4F8EF

tetradic

#EFF4F8 #F7EFF8 #F8F3EF #EFF8EF

square

#EFF4F8 #F7EFF8 #F8F3EF #EFF8EF

split-complementary

#EFF4F8 #F8EFEF #F8F7EF

monochromatic

#9AB9D3 #C4D7E5 #EAF0F6 #EAF0F6 #EAF0F6

Accessibility & contrast

On white

1.11

#EFF4F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.97

#EFF4F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF4F8

18.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF4F8	#FFFFFF	#000000	##000000
##EFF4F8	1.00	1.11	18.97	18.97
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.97	21.00	1.00	1.00
##000000	18.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2F4F8

Deuteranopia (green-blind)

#F1F3F8

Tritanopia (blue-blind)

#EDF5F5

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #eff4f8;
/* rgb */ color: rgb(239, 244, 248);
/* oklch */ color: oklch(96.5% 0.008 241.6);

Tailwind

colors: {
  custom: {
    50: '#f4f7fa',
    500: '#eff4f8',
    950: '#000000',
  },
}

SCSS

$custom: #eff4f8;
$custom-light: #f4f7fa;
$custom-dark: #000000;

JSON

{
  "hex": "#eff4f8",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 248
  },
  "hsl": {
    "h": 206.667,
    "s": 39.13,
    "l": 95.49
  },
  "oklch": {
    "l": 0.96451,
    "c": 0.00758,
    "h": 241.6
  },
  "luminance": 0.89829
}

Semantic roles & 50–950 ramp

primary

#EFF4F8

secondary

#D5C4B6

accent

#6C33B2

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF4F8

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

Preview Lab → · Contrast checker → · Palette generator →