#233A80#233A80

#233A80 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.3% C 0.122 H 266.7°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#233A80
RGB	rgb(35, 58, 128)
HSL	hsl(225, 57%, 32%)
HSV	hsv(225, 73%, 50%)
CMYK	cmyk(72.7%, 54.7%, 0%, 49.8%)
CIE-LAB	lab(26.57, 16.72, -42.25)
CIE-LCH	lch(26.57, 45.44, 291.59°)
OKLab	oklab(37.31% -0.007 -0.1215)
OKLCH	oklch(37.31% 0.122 266.7)
XYZ	xyz(6.1011, 4.9413, 21.0501)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A80 #806923

analogous

#236980 #233A80 #3B2380

triadic

#233A80 #80233A #3A8023

tetradic

#233A80 #802369 #806923 #23803B

square

#233A80 #802369 #806923 #23803B

split-complementary

#233A80 #803B23 #698023

monochromatic

#090E20 #162450 #233A80 #3050B0 #4F6ECF

Accessibility & contrast

On white

10.56

#233A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#233A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A80

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A80	#FFFFFF	#000000	##FFFFFF
##233A80	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094382

Deuteranopia (green-blind)

#003B7F

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233a80;
/* rgb */ color: rgb(35, 58, 128);
/* oklch */ color: oklch(37.3% 0.122 266.7);

Tailwind

colors: {
  custom: {
    50: '#6b6fa5',
    500: '#233a80',
    950: '#000000',
  },
}

SCSS

$custom: #233a80;
$custom-light: #6b6fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#233a80",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 128
  },
  "hsl": {
    "h": 225.161,
    "s": 57.055,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37305,
    "c": 0.12171,
    "h": 266.7
  },
  "luminance": 0.04942
}

Semantic roles & 50–950 ramp

primary

#233A80

secondary

#B2994D

accent

#BB47E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233A80

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

Preview Lab → · Contrast checker → · Palette generator →