#EFF3FD#EFF3FD

#EFF3FD is a very light, near-neutral blue. Relative luminance 0.895; OKLCH L 96.4% C 0.014 H 268.5°. Best body text is #000000 at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#EFF3FD
RGB	rgb(239, 243, 253)
HSL	hsl(223, 78%, 96%)
HSV	hsv(223, 6%, 99%)
CMYK	cmyk(5.5%, 4%, 0%, 0.8%)
CIE-LAB	lab(95.81, 0.50, -5.26)
CIE-LCH	lch(95.81, 5.28, 275.43°)
OKLab	oklab(96.4% -0.0004 -0.014)
OKLCH	oklch(96.4% 0.014 268.5)
XYZ	xyz(85.3734, 89.5433, 105.6953)
Luminance	0.8954 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF3FD #FDF9EF

analogous

#EFFAFD #EFF3FD #F2EFFD

triadic

#EFF3FD #FDEFF3 #F3FDEF

tetradic

#EFF3FD #FDEFFA #FDF9EF #EFFDF2

square

#EFF3FD #FDEFFA #FDF9EF #EFFDF2

split-complementary

#EFF3FD #FDF2EF #FAFDEF

monochromatic

#82A1EF #B9CAF6 #E4EBFC #E4EBFC #E4EBFC

Accessibility & contrast

On white

1.11

#EFF3FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.91

#EFF3FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF3FD

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF3FD	#FFFFFF	#000000	##000000
##EFF3FD	1.00	1.11	18.91	18.91
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.91	21.00	1.00	1.00
##000000	18.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F4FE

Deuteranopia (green-blind)

#EFF2FD

Tritanopia (blue-blind)

#ECF5F6

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #eff3fd;
/* rgb */ color: rgb(239, 243, 253);
/* oklch */ color: oklch(96.4% 0.014 268.5);

Tailwind

colors: {
  custom: {
    50: '#f4f7fe',
    500: '#eff3fd',
    950: '#000000',
  },
}

SCSS

$custom: #eff3fd;
$custom-light: #f4f7fe;
$custom-dark: #000000;

JSON

{
  "hex": "#eff3fd",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 253
  },
  "hsl": {
    "h": 222.857,
    "s": 77.778,
    "l": 96.471
  },
  "oklch": {
    "l": 0.96401,
    "c": 0.01405,
    "h": 268.5
  },
  "luminance": 0.89544
}

Semantic roles & 50–950 ramp

primary

#EFF3FD

secondary

#E6D5AA

accent

#9F0BDA

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF3FD

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

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