#233BAB#233BAB

#233BAB is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.3% C 0.180 H 267.8°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#233BAB
RGB	rgb(35, 59, 171)
HSL	hsl(229, 66%, 40%)
HSV	hsv(229, 80%, 67%)
CMYK	cmyk(79.5%, 65.5%, 0%, 32.9%)
CIE-LAB	lab(30.46, 32.64, -62.24)
CIE-LCH	lch(30.46, 70.28, 297.67°)
OKLab	oklab(41.33% -0.007 -0.1802)
OKLCH	oklch(41.33% 0.18 267.8)
XYZ	xyz(9.6052, 6.4244, 39.2540)
Luminance	0.0643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BAB #AB9323

analogous

#237FAB #233BAB #4F23AB

triadic

#233BAB #AB233B #3BAB23

tetradic

#233BAB #AB237F #AB9323 #23AB4F

square

#233BAB #AB237F #AB9323 #23AB4F

split-complementary

#233BAB #AB4F23 #7FAB23

monochromatic

#0E1845 #192978 #233BAB #3552D6 #687DE0

Accessibility & contrast

On white

9.19

#233BAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#233BAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BAB

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BAB	#FFFFFF	#000000	##FFFFFF
##233BAB	1.00	9.19	2.29	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAF

Deuteranopia (green-blind)

#0041A9

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #233bab;
/* rgb */ color: rgb(35, 59, 171);
/* oklch */ color: oklch(41.3% 0.180 267.8);

Tailwind

colors: {
  custom: {
    50: '#7571c5',
    500: '#233bab',
    950: '#000000',
  },
}

SCSS

$custom: #233bab;
$custom-light: #7571c5;
$custom-dark: #000000;

JSON

{
  "hex": "#233bab",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 171
  },
  "hsl": {
    "h": 229.412,
    "s": 66.019,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41331,
    "c": 0.1803,
    "h": 267.8
  },
  "luminance": 0.06426
}

Semantic roles & 50–950 ramp

primary

#233BAB

secondary

#C6B564

accent

#CB3FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #233BAB

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

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