#232F5B#232F5B

#232F5B is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.9% C 0.080 H 269.9°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#232F5B
RGB	rgb(35, 47, 91)
HSL	hsl(227, 44%, 25%)
HSV	hsv(227, 62%, 36%)
CMYK	cmyk(61.5%, 48.4%, 0%, 64.3%)
CIE-LAB	lab(20.62, 10.04, -28.03)
CIE-LCH	lch(20.62, 29.78, 289.71°)
OKLab	oklab(31.93% -0.0001 -0.0799)
OKLCH	oklch(31.93% 0.08 269.9)
XYZ	xyz(3.5974, 3.1454, 10.3131)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#232F5B #5B4F23

analogous

#234B5B #232F5B #33235B

triadic

#232F5B #5B232F #2F5B23

tetradic

#232F5B #5B234B #5B4F23 #235B33

square

#232F5B #5B234B #5B4F23 #235B33

split-complementary

#232F5B #5B3323 #4B5B23

monochromatic

#090B16 #12182F #232F5B #344687 #455DB3

Accessibility & contrast

On white

12.89

#232F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#232F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #232F5B

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##232F5B	#FFFFFF	#000000	##FFFFFF
##232F5B	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B345D

Deuteranopia (green-blind)

#142F5A

Tritanopia (blue-blind)

#013940

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #232f5b;
/* rgb */ color: rgb(35, 47, 91);
/* oklch */ color: oklch(31.9% 0.080 269.9);

Tailwind

colors: {
  custom: {
    50: '#63678a',
    500: '#232f5b',
    950: '#000000',
  },
}

SCSS

$custom: #232f5b;
$custom-light: #63678a;
$custom-dark: #000000;

JSON

{
  "hex": "#232f5b",
  "rgb": {
    "r": 35,
    "g": 47,
    "b": 91
  },
  "hsl": {
    "h": 227.143,
    "s": 44.444,
    "l": 24.706
  },
  "oklch": {
    "l": 0.31932,
    "c": 0.07986,
    "h": 269.9
  },
  "luminance": 0.03146
}

Semantic roles & 50–950 ramp

primary

#232F5B

secondary

#8F804B

accent

#B954D4

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060B

muted

#7A7A7C

Preview Lab

Preview with #232F5B

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

Preview Lab → · Contrast checker → · Palette generator →