#F0F3FF#F0F3FF

#F0F3FF is a very light, near-neutral blue. Relative luminance 0.898; OKLCH L 96.5% C 0.016 H 274.8°. Best body text is #000000 at 18.97:1 contrast (WCAG AA passes).

Color values

HEX	#F0F3FF
RGB	rgb(240, 243, 255)
HSL	hsl(228, 100%, 97%)
HSV	hsv(228, 6%, 100%)
CMYK	cmyk(5.9%, 4.7%, 0%, 0%)
CIE-LAB	lab(95.93, 1.20, -6.10)
CIE-LCH	lch(95.93, 6.21, 281.09°)
OKLab	oklab(96.54% 0.0014 -0.0163)
OKLCH	oklch(96.54% 0.016 274.8)
XYZ	xyz(86.0323, 89.8460, 107.3979)
Luminance	0.8985 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F0F3FF #FFFCF0

analogous

#F0FBFF #F0F3FF #F5F0FF

triadic

#F0F3FF #FFF0F3 #F3FFF0

tetradic

#F0F3FF #FFF0FB #FFFCF0 #F0FFF5

square

#F0F3FF #FFF0FB #FFFCF0 #F0FFF5

split-complementary

#F0F3FF #FFF5F0 #FBFFF0

monochromatic

#7691FF #B3C2FF #E0E7FF #E0E7FF #E0E7FF

Accessibility & contrast

On white

1.11

#F0F3FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.97

#F0F3FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F0F3FF

18.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F0F3FF	#FFFFFF	#000000	##000000
##F0F3FF	1.00	1.11	18.97	18.97
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.97	21.00	1.00	1.00
##000000	18.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F4FF

Deuteranopia (green-blind)

#EFF3FF

Tritanopia (blue-blind)

#EDF5F7

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #f0f3ff;
/* rgb */ color: rgb(240, 243, 255);
/* oklch */ color: oklch(96.5% 0.016 274.8);

Tailwind

colors: {
  custom: {
    50: '#f5f7ff',
    500: '#f0f3ff',
    950: '#000000',
  },
}

SCSS

$custom: #f0f3ff;
$custom-light: #f5f7ff;
$custom-dark: #000000;

JSON

{
  "hex": "#f0f3ff",
  "rgb": {
    "r": 240,
    "g": 243,
    "b": 255
  },
  "hsl": {
    "h": 228,
    "s": 100,
    "l": 97.059
  },
  "oklch": {
    "l": 0.96536,
    "c": 0.01636,
    "h": 274.8
  },
  "luminance": 0.89846
}

Semantic roles & 50–950 ramp

primary

#F0F3FF

secondary

#EFE0A4

accent

#B800E6

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171718

muted

#858586

Preview Lab

Preview with #F0F3FF

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

Preview Lab → · Contrast checker → · Palette generator →