#EFF1FF#EFF1FF

#EFF1FF is a very light, near-neutral blue. Relative luminance 0.885; OKLCH L 96.1% C 0.019 H 279.5°. Best body text is #000000 at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#EFF1FF
RGB	rgb(239, 241, 255)
HSL	hsl(233, 100%, 97%)
HSV	hsv(233, 6%, 100%)
CMYK	cmyk(6.3%, 5.5%, 0%, 0%)
CIE-LAB	lab(95.36, 1.90, -6.95)
CIE-LCH	lch(95.36, 7.20, 285.25°)
OKLab	oklab(96.07% 0.0031 -0.0186)
OKLCH	oklch(96.07% 0.019 279.5)
XYZ	xyz(85.0984, 88.4809, 107.1836)
Luminance	0.8848 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF1FF #FFFDEF

analogous

#EFF9FF #EFF1FF #F5EFFF

triadic

#EFF1FF #FFEFF1 #F1FFEF

tetradic

#EFF1FF #FFEFF9 #FFFDEF #EFFFF5

square

#EFF1FF #FFEFF9 #FFFDEF #EFFFF5

split-complementary

#EFF1FF #FFF5EF #F9FFEF

monochromatic

#7586FF #B2BBFF #E0E4FF #E0E4FF #E0E4FF

Accessibility & contrast

On white

1.12

#EFF1FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.70

#EFF1FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF1FF

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF1FF	#FFFFFF	#000000	##000000
##EFF1FF	1.00	1.12	18.70	18.70
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.70	21.00	1.00	1.00
##000000	18.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EEF2FF

Deuteranopia (green-blind)

#EDF1FF

Tritanopia (blue-blind)

#ECF3F5

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #eff1ff;
/* rgb */ color: rgb(239, 241, 255);
/* oklch */ color: oklch(96.1% 0.019 279.5);

Tailwind

colors: {
  custom: {
    50: '#f4f5ff',
    500: '#eff1ff',
    950: '#000000',
  },
}

SCSS

$custom: #eff1ff;
$custom-light: #f4f5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#eff1ff",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 255
  },
  "hsl": {
    "h": 232.5,
    "s": 100,
    "l": 96.863
  },
  "oklch": {
    "l": 0.9607,
    "c": 0.01884,
    "h": 279.5
  },
  "luminance": 0.88481
}

Semantic roles & 50–950 ramp

primary

#EFF1FF

secondary

#EFE5A3

accent

#C900E6

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171718

muted

#858586

Preview Lab

Preview with #EFF1FF

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

Preview Lab → · Contrast checker → · Palette generator →