#231A9E#231A9E

#231A9E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.0% C 0.197 H 272.5°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#231A9E
RGB	rgb(35, 26, 158)
HSL	hsl(244, 72%, 36%)
HSV	hsv(244, 84%, 62%)
CMYK	cmyk(77.8%, 83.5%, 0%, 38%)
CIE-LAB	lab(22.17, 47.33, -68.05)
CIE-LCH	lch(22.17, 82.89, 304.82°)
OKLab	oklab(35% 0.0086 -0.1969)
OKLCH	oklch(35% 0.197 272.5)
XYZ	xyz(7.2320, 3.5640, 32.6479)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A9E #959E1A

analogous

#1A539E #231A9E #651A9E

triadic

#231A9E #9E231A #1A9E23

tetradic

#231A9E #9E1A53 #959E1A #1A9E65

square

#231A9E #9E1A53 #959E1A #1A9E65

split-complementary

#231A9E #9E651A #539E1A

monochromatic

#0C0935 #171169 #231A9E #2F23D3 #5A50E2

Accessibility & contrast

On white

12.26

#231A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#231A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A9E

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A9E	#FFFFFF	#000000	##FFFFFF
##231A9E	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA2

Deuteranopia (green-blind)

#002E9C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231a9e;
/* rgb */ color: rgb(35, 26, 158);
/* oklch */ color: oklch(35.0% 0.197 272.5);

Tailwind

colors: {
  custom: {
    50: '#755bbc',
    500: '#231a9e',
    950: '#000000',
  },
}

SCSS

$custom: #231a9e;
$custom-light: #755bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#231a9e",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 158
  },
  "hsl": {
    "h": 244.091,
    "s": 71.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.35002,
    "c": 0.19705,
    "h": 272.5
  },
  "luminance": 0.03565
}

Semantic roles & 50–950 ramp

primary

#231A9E

secondary

#BDC54F

accent

#EE39E2

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231A9E

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

Preview Lab → · Contrast checker → · Palette generator →