#EFF3F8#EFF3F8

#EFF3F8 is a very light, near-neutral cyan. Relative luminance 0.892; OKLCH L 96.3% C 0.008 H 253.9°. Best body text is #000000 at 18.85:1 contrast (WCAG AA passes).

Color values

HEX	#EFF3F8
RGB	rgb(239, 243, 248)
HSL	hsl(213, 39%, 95%)
HSV	hsv(213, 4%, 97%)
CMYK	cmyk(3.6%, 2%, 0%, 2.7%)
CIE-LAB	lab(95.68, -0.42, -2.86)
CIE-LCH	lch(95.68, 2.89, 261.65°)
OKLab	oklab(96.26% -0.0022 -0.0076)
OKLCH	oklch(96.26% 0.008 253.9)
XYZ	xyz(84.5873, 89.2289, 101.5553)
Luminance	0.8923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF3F8 #F8F4EF

analogous

#EFF7F8 #EFF3F8 #EFEFF8

triadic

#EFF3F8 #F8EFF3 #F3F8EF

tetradic

#EFF3F8 #F8EFF7 #F8F4EF #EFF8EF

square

#EFF3F8 #F8EFF7 #F8F4EF #EFF8EF

split-complementary

#EFF3F8 #F8EFEF #F7F8EF

monochromatic

#9AB3D3 #C4D3E5 #EAEFF6 #EAEFF6 #EAEFF6

Accessibility & contrast

On white

1.11

#EFF3F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.85

#EFF3F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF3F8

18.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF3F8	#FFFFFF	#000000	##000000
##EFF3F8	1.00	1.11	18.85	18.85
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.85	21.00	1.00	1.00
##000000	18.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1F3F8

Deuteranopia (green-blind)

#F0F2F8

Tritanopia (blue-blind)

#EDF4F5

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #eff3f8;
/* rgb */ color: rgb(239, 243, 248);
/* oklch */ color: oklch(96.3% 0.008 253.9);

Tailwind

colors: {
  custom: {
    50: '#f4f7fa',
    500: '#eff3f8',
    950: '#000000',
  },
}

SCSS

$custom: #eff3f8;
$custom-light: #f4f7fa;
$custom-dark: #000000;

JSON

{
  "hex": "#eff3f8",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 248
  },
  "hsl": {
    "h": 213.333,
    "s": 39.13,
    "l": 95.49
  },
  "oklch": {
    "l": 0.96255,
    "c": 0.00795,
    "h": 253.9
  },
  "luminance": 0.89229
}

Semantic roles & 50–950 ramp

primary

#EFF3F8

secondary

#D5C7B6

accent

#7A33B2

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF3F8

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

Preview Lab → · Contrast checker → · Palette generator →