#233A83#233A83

#233A83 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.6% C 0.126 H 266.9°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#233A83
RGB	rgb(35, 58, 131)
HSL	hsl(226, 58%, 33%)
HSV	hsv(226, 73%, 51%)
CMYK	cmyk(73.3%, 55.7%, 0%, 48.6%)
CIE-LAB	lab(26.80, 17.90, -43.76)
CIE-LCH	lch(26.80, 47.28, 292.25°)
OKLab	oklab(37.55% -0.0067 -0.1259)
OKLCH	oklch(37.55% 0.126 266.9)
XYZ	xyz(6.3015, 5.0215, 22.1055)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A83 #836C23

analogous

#236A83 #233A83 #3C2383

triadic

#233A83 #83233A #3A8323

tetradic

#233A83 #83236A #836C23 #23833C

square

#233A83 #83236A #836C23 #23833C

split-complementary

#233A83 #833C23 #6A8323

monochromatic

#090F22 #162553 #233A83 #304FB3 #506FD0

Accessibility & contrast

On white

10.48

#233A83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#233A83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A83

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A83	#FFFFFF	#000000	##FFFFFF
##233A83	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024486

Deuteranopia (green-blind)

#003B82

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233a83;
/* rgb */ color: rgb(35, 58, 131);
/* oklch */ color: oklch(37.6% 0.126 266.9);

Tailwind

colors: {
  custom: {
    50: '#6b6fa8',
    500: '#233a83',
    950: '#000000',
  },
}

SCSS

$custom: #233a83;
$custom-light: #6b6fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#233a83",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 131
  },
  "hsl": {
    "h": 225.625,
    "s": 57.831,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37551,
    "c": 0.12613,
    "h": 266.9
  },
  "luminance": 0.05022
}

Semantic roles & 50–950 ramp

primary

#233A83

secondary

#B49B4E

accent

#BC47E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #233A83

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

Preview Lab → · Contrast checker → · Palette generator →