#EFF3FC#EFF3FC

#EFF3FC is a very light, near-neutral blue. Relative luminance 0.895; OKLCH L 96.4% C 0.013 H 266.7°. Best body text is #000000 at 18.90:1 contrast (WCAG AA passes).

Color values

HEX	#EFF3FC
RGB	rgb(239, 243, 252)
HSL	hsl(222, 68%, 96%)
HSV	hsv(222, 5%, 99%)
CMYK	cmyk(5.2%, 3.6%, 0%, 1.2%)
CIE-LAB	lab(95.78, 0.31, -4.78)
CIE-LCH	lch(95.78, 4.79, 273.76°)
OKLab	oklab(96.37% -0.0007 -0.0128)
OKLCH	oklch(96.37% 0.013 266.7)
XYZ	xyz(85.2145, 89.4798, 104.8585)
Luminance	0.8948 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF3FC #FCF8EF

analogous

#EFFAFC #EFF3FC #F2EFFC

triadic

#EFF3FC #FCEFF3 #F3FCEF

tetradic

#EFF3FC #FCEFFA #FCF8EF #EFFCF2

square

#EFF3FC #FCEFFA #FCF8EF #EFFCF2

split-complementary

#EFF3FC #FCF2EF #FAFCEF

monochromatic

#88A6E9 #BBCCF2 #E5ECFA #E5ECFA #E5ECFA

Accessibility & contrast

On white

1.11

#EFF3FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.90

#EFF3FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF3FC

18.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF3FC	#FFFFFF	#000000	##000000
##EFF3FC	1.00	1.11	18.90	18.90
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.90	21.00	1.00	1.00
##000000	18.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F3FC

Deuteranopia (green-blind)

#EFF2FC

Tritanopia (blue-blind)

#ECF5F6

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #eff3fc;
/* rgb */ color: rgb(239, 243, 252);
/* oklch */ color: oklch(96.4% 0.013 266.7);

Tailwind

colors: {
  custom: {
    50: '#f4f7fd',
    500: '#eff3fc',
    950: '#000000',
  },
}

SCSS

$custom: #eff3fc;
$custom-light: #f4f7fd;
$custom-dark: #000000;

JSON

{
  "hex": "#eff3fc",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 252
  },
  "hsl": {
    "h": 221.538,
    "s": 68.421,
    "l": 96.275
  },
  "oklch": {
    "l": 0.96372,
    "c": 0.01278,
    "h": 266.7
  },
  "luminance": 0.8948
}

Semantic roles & 50–950 ramp

primary

#EFF3FC

secondary

#E2D2AD

accent

#9715D0

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF3FC

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

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