#231E9A#231E9A

#231E9A is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.0% C 0.189 H 272.5°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#231E9A
RGB	rgb(35, 30, 154)
HSL	hsl(242, 67%, 36%)
HSV	hsv(242, 81%, 60%)
CMYK	cmyk(77.3%, 80.5%, 0%, 39.6%)
CIE-LAB	lab(22.37, 44.09, -65.27)
CIE-LCH	lch(22.37, 78.77, 304.04°)
OKLab	oklab(35% 0.0083 -0.1889)
OKLCH	oklch(35% 0.189 272.5)
XYZ	xyz(6.9882, 3.6182, 30.8957)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E9A #959A1E

analogous

#1E579A #231E9A #611E9A

triadic

#231E9A #9A231E #1E9A23

tetradic

#231E9A #9A1E57 #959A1E #1E9A61

square

#231E9A #9A1E57 #959A1E #1E9A61

split-complementary

#231E9A #9A611E #579A1E

monochromatic

#0C0A34 #171467 #231E9A #2F28CD #5A55DE

Accessibility & contrast

On white

12.18

#231E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#231E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E9A

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E9A	#FFFFFF	#000000	##FFFFFF
##231E9A	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9D

Deuteranopia (green-blind)

#002F98

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231e9a;
/* rgb */ color: rgb(35, 30, 154);
/* oklch */ color: oklch(35.0% 0.189 272.5);

Tailwind

colors: {
  custom: {
    50: '#745db9',
    500: '#231e9a',
    950: '#000000',
  },
}

SCSS

$custom: #231e9a;
$custom-light: #745db9;
$custom-dark: #000000;

JSON

{
  "hex": "#231e9a",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 154
  },
  "hsl": {
    "h": 242.419,
    "s": 67.391,
    "l": 36.078
  },
  "oklch": {
    "l": 0.34996,
    "c": 0.18908,
    "h": 272.5
  },
  "luminance": 0.03619
}

Semantic roles & 50–950 ramp

primary

#231E9A

secondary

#BDC153

accent

#EA3EE3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231E9A

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

Preview Lab → · Contrast checker → · Palette generator →