#EFF3FE#EFF3FE

#EFF3FE is a very light, near-neutral blue. Relative luminance 0.896; OKLCH L 96.4% C 0.015 H 270.0°. Best body text is #000000 at 18.92:1 contrast (WCAG AA passes).

Color values

HEX	#EFF3FE
RGB	rgb(239, 243, 254)
HSL	hsl(224, 88%, 97%)
HSV	hsv(224, 6%, 100%)
CMYK	cmyk(5.9%, 4.3%, 0%, 0.4%)
CIE-LAB	lab(95.83, 0.69, -5.74)
CIE-LCH	lch(95.83, 5.78, 276.82°)
OKLab	oklab(96.43% 0 -0.0153)
OKLCH	oklch(96.43% 0.015 270)
XYZ	xyz(85.5331, 89.6072, 106.5365)
Luminance	0.8961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF3FE #FEFAEF

analogous

#EFFBFE #EFF3FE #F3EFFE

triadic

#EFF3FE #FEEFF3 #F3FEEF

tetradic

#EFF3FE #FEEFFB #FEFAEF #EFFEF3

square

#EFF3FE #FEEFFB #FEFAEF #EFFEF3

split-complementary

#EFF3FE #FEF3EF #FBFEEF

monochromatic

#7C9DF7 #B5C8FA #E2E9FD #E2E9FD #E2E9FD

Accessibility & contrast

On white

1.11

#EFF3FE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.92

#EFF3FE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF3FE

18.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF3FE	#FFFFFF	#000000	##000000
##EFF3FE	1.00	1.11	18.92	18.92
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.92	21.00	1.00	1.00
##000000	18.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F4FF

Deuteranopia (green-blind)

#EFF2FE

Tritanopia (blue-blind)

#ECF5F6

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #eff3fe;
/* rgb */ color: rgb(239, 243, 254);
/* oklch */ color: oklch(96.4% 0.015 270.0);

Tailwind

colors: {
  custom: {
    50: '#f4f7fe',
    500: '#eff3fe',
    950: '#000000',
  },
}

SCSS

$custom: #eff3fe;
$custom-light: #f4f7fe;
$custom-dark: #000000;

JSON

{
  "hex": "#eff3fe",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 254
  },
  "hsl": {
    "h": 224,
    "s": 88.235,
    "l": 96.667
  },
  "oklch": {
    "l": 0.96431,
    "c": 0.01533,
    "h": 270
  },
  "luminance": 0.89608
}

Semantic roles & 50–950 ramp

primary

#EFF3FE

secondary

#EAD8A7

accent

#A801E5

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF3FE

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

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