#2331A8#2331A8

#2331A8 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.3% C 0.188 H 269.5°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#2331A8
RGB	rgb(35, 49, 168)
HSL	hsl(234, 66%, 40%)
HSV	hsv(234, 79%, 66%)
CMYK	cmyk(79.2%, 70.8%, 0%, 34.1%)
CIE-LAB	lab(27.79, 37.93, -64.83)
CIE-LCH	lch(27.79, 75.11, 300.33°)
OKLab	oklab(39.3% -0.0017 -0.1877)
OKLCH	oklch(39.3% 0.188 269.5)
XYZ	xyz(8.8569, 5.3801, 37.6099)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2331A8 #A89A23

analogous

#2374A8 #2331A8 #5723A8

triadic

#2331A8 #A82331 #31A823

tetradic

#2331A8 #A82374 #A89A23 #23A857

square

#2331A8 #A82374 #A89A23 #23A857

split-complementary

#2331A8 #A85723 #74A823

monochromatic

#0E1343 #182275 #2331A8 #3445D5 #6673DF

Accessibility & contrast

On white

10.11

#2331A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2331A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2331A8

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2331A8	#FFFFFF	#000000	##FFFFFF
##2331A8	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AC

Deuteranopia (green-blind)

#003BA6

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2331a8;
/* rgb */ color: rgb(35, 49, 168);
/* oklch */ color: oklch(39.3% 0.188 269.5);

Tailwind

colors: {
  custom: {
    50: '#7669c3',
    500: '#2331a8',
    950: '#000000',
  },
}

SCSS

$custom: #2331a8;
$custom-light: #7669c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2331a8",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 168
  },
  "hsl": {
    "h": 233.684,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39302,
    "c": 0.18775,
    "h": 269.5
  },
  "luminance": 0.05381
}

Semantic roles & 50–950 ramp

primary

#2331A8

secondary

#C5BA62

accent

#D73FE8

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2331A8

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

Preview Lab → · Contrast checker → · Palette generator →