#233B8A#233B8A

#233B8A is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.135 H 267.0°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#233B8A
RGB	rgb(35, 59, 138)
HSL	hsl(226, 60%, 34%)
HSV	hsv(226, 75%, 54%)
CMYK	cmyk(74.6%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(27.63, 19.96, -46.77)
CIE-LCH	lch(27.63, 50.85, 293.11°)
OKLab	oklab(38.35% -0.0071 -0.1348)
OKLCH	oklch(38.35% 0.135 267)
XYZ	xyz(6.8429, 5.3195, 24.7060)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B8A #8A7223

analogous

#236F8A #233B8A #3E238A

triadic

#233B8A #8A233B #3B8A23

tetradic

#233B8A #8A236F #8A7223 #238A3E

square

#233B8A #8A236F #8A7223 #238A3E

split-complementary

#233B8A #8A3E23 #6F8A23

monochromatic

#0A1128 #172659 #233B8A #2F50BB #5472D4

Accessibility & contrast

On white

10.17

#233B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#233B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B8A

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B8A	#FFFFFF	#000000	##FFFFFF
##233B8A	1.00	10.17	2.06	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468D

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233b8a;
/* rgb */ color: rgb(35, 59, 138);
/* oklch */ color: oklch(38.3% 0.135 267.0);

Tailwind

colors: {
  custom: {
    50: '#6d70ad',
    500: '#233b8a',
    950: '#000000',
  },
}

SCSS

$custom: #233b8a;
$custom-light: #6d70ad;
$custom-dark: #000000;

JSON

{
  "hex": "#233b8a",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 226.019,
    "s": 59.538,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38349,
    "c": 0.13497,
    "h": 267
  },
  "luminance": 0.0532
}

Semantic roles & 50–950 ramp

primary

#233B8A

secondary

#B7A051

accent

#BE45E3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233B8A

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

Preview Lab → · Contrast checker → · Palette generator →