#233AB0#233AB0

#233AB0 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.188 H 267.9°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#233AB0
RGB	rgb(35, 58, 176)
HSL	hsl(230, 67%, 41%)
HSV	hsv(230, 80%, 69%)
CMYK	cmyk(80.1%, 67%, 0%, 31%)
CIE-LAB	lab(30.68, 35.15, -64.87)
CIE-LCH	lch(30.68, 73.78, 298.45°)
OKLab	oklab(41.64% -0.0067 -0.1878)
OKLCH	oklch(41.64% 0.188 267.9)
XYZ	xyz(10.0399, 6.5169, 41.7946)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233AB0 #B09923

analogous

#2381B0 #233AB0 #5323B0

triadic

#233AB0 #B0233A #3AB023

tetradic

#233AB0 #B02381 #B09923 #23B053

square

#233AB0 #B02381 #B09923 #23B053

split-complementary

#233AB0 #B05323 #81B023

monochromatic

#0F184A #19297D #233AB0 #3953D8 #6C7FE2

Accessibility & contrast

On white

9.12

#233AB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#233AB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233AB0

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233AB0	#FFFFFF	#000000	##FFFFFF
##233AB0	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB4

Deuteranopia (green-blind)

#0042AE

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #233ab0;
/* rgb */ color: rgb(35, 58, 176);
/* oklch */ color: oklch(41.6% 0.188 267.9);

Tailwind

colors: {
  custom: {
    50: '#7770c9',
    500: '#233ab0',
    950: '#000000',
  },
}

SCSS

$custom: #233ab0;
$custom-light: #7770c9;
$custom-dark: #000000;

JSON

{
  "hex": "#233ab0",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 176
  },
  "hsl": {
    "h": 230.213,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41636,
    "c": 0.18796,
    "h": 267.9
  },
  "luminance": 0.06518
}

Semantic roles & 50–950 ramp

primary

#233AB0

secondary

#C8B867

accent

#CE3EEA

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #233AB0

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

Preview Lab → · Contrast checker → · Palette generator →