#EFF4FB#EFF4FB

#EFF4FB is a very light, near-neutral blue. Relative luminance 0.900; OKLCH L 96.5% C 0.011 H 256.7°. Best body text is #000000 at 19.00:1 contrast (WCAG AA passes).

Color values

HEX	#EFF4FB
RGB	rgb(239, 244, 251)
HSL	hsl(215, 60%, 96%)
HSV	hsv(215, 5%, 98%)
CMYK	cmyk(4.8%, 2.8%, 0%, 1.6%)
CIE-LAB	lab(96.00, -0.38, -3.93)
CIE-LCH	lch(96.00, 3.95, 264.49°)
OKLab	oklab(96.54% -0.0025 -0.0105)
OKLCH	oklch(96.54% 0.011 256.7)
XYZ	xyz(85.3566, 90.0167, 104.1262)
Luminance	0.9002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF4FB #FBF6EF

analogous

#EFFAFB #EFF4FB #F0EFFB

triadic

#EFF4FB #FBEFF4 #F4FBEF

tetradic

#EFF4FB #FBEFFA #FBF6EF #EFFBF0

square

#EFF4FB #FBEFFA #FBF6EF #EFFBF0

split-complementary

#EFF4FB #FBF0EF #FAFBEF

monochromatic

#8DB1E3 #BED2EF #E7EEF9 #E7EEF9 #E7EEF9

Accessibility & contrast

On white

1.11

#EFF4FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.00

#EFF4FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF4FB

19.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF4FB	#FFFFFF	#000000	##000000
##EFF4FB	1.00	1.11	19.00	19.00
#FFFFFF	1.11	1.00	21.00	21.00
#000000	19.00	21.00	1.00	1.00
##000000	19.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2F4FB

Deuteranopia (green-blind)

#F1F3FB

Tritanopia (blue-blind)

#ECF5F6

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #eff4fb;
/* rgb */ color: rgb(239, 244, 251);
/* oklch */ color: oklch(96.5% 0.011 256.7);

Tailwind

colors: {
  custom: {
    50: '#f4f7fc',
    500: '#eff4fb',
    950: '#000000',
  },
}

SCSS

$custom: #eff4fb;
$custom-light: #f4f7fc;
$custom-dark: #000000;

JSON

{
  "hex": "#eff4fb",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 251
  },
  "hsl": {
    "h": 215,
    "s": 60,
    "l": 96.078
  },
  "oklch": {
    "l": 0.96538,
    "c": 0.0108,
    "h": 256.7
  },
  "luminance": 0.90017
}

Semantic roles & 50–950 ramp

primary

#EFF4FB

secondary

#DFCBB0

accent

#811EC8

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171717

muted

#858585

Preview Lab

Preview with #EFF4FB

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

Preview Lab → · Contrast checker → · Palette generator →