#233B8D#233B8D

#233B8D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.139 H 267.1°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#233B8D
RGB	rgb(35, 59, 141)
HSL	hsl(226, 60%, 35%)
HSV	hsv(226, 75%, 55%)
CMYK	cmyk(75.2%, 58.2%, 0%, 44.7%)
CIE-LAB	lab(27.87, 21.13, -48.24)
CIE-LCH	lch(27.87, 52.66, 293.66°)
OKLab	oklab(38.6% -0.0069 -0.1391)
OKLCH	oklch(38.6% 0.139 267.1)
XYZ	xyz(7.0631, 5.4076, 25.8657)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B8D #8D7523

analogous

#23708D #233B8D #40238D

triadic

#233B8D #8D233B #3B8D23

tetradic

#233B8D #8D2370 #8D7523 #238D40

square

#233B8D #8D2370 #8D7523 #238D40

split-complementary

#233B8D #8D4023 #708D23

monochromatic

#0B122B #17265C #233B8D #2F50BE #5572D5

Accessibility & contrast

On white

10.09

#233B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#233B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B8D

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B8D	#FFFFFF	#000000	##FFFFFF
##233B8D	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004790

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233b8d;
/* rgb */ color: rgb(35, 59, 141);
/* oklch */ color: oklch(38.6% 0.139 267.1);

Tailwind

colors: {
  custom: {
    50: '#6e70af',
    500: '#233b8d',
    950: '#000000',
  },
}

SCSS

$custom: #233b8d;
$custom-light: #6e70af;
$custom-dark: #000000;

JSON

{
  "hex": "#233b8d",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 141
  },
  "hsl": {
    "h": 226.415,
    "s": 60.227,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38604,
    "c": 0.13926,
    "h": 267.1
  },
  "luminance": 0.05408
}

Semantic roles & 50–950 ramp

primary

#233B8D

secondary

#B9A253

accent

#BF44E3

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233B8D

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

Preview Lab → · Contrast checker → · Palette generator →