#231E99#231E99

#231E99 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.9% C 0.188 H 272.6°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#231E99
RGB	rgb(35, 30, 153)
HSL	hsl(242, 67%, 36%)
HSV	hsv(242, 80%, 60%)
CMYK	cmyk(77.1%, 80.4%, 0%, 40%)
CIE-LAB	lab(22.25, 43.77, -64.86)
CIE-LCH	lch(22.25, 78.24, 304.01°)
OKLab	oklab(34.88% 0.0086 -0.1877)
OKLCH	oklch(34.88% 0.188 272.6)
XYZ	xyz(6.9053, 3.5850, 30.4589)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E99 #94991E

analogous

#1E5699 #231E99 #601E99

triadic

#231E99 #99231E #1E9923

tetradic

#231E99 #991E56 #94991E #1E9960

square

#231E99 #991E56 #94991E #1E9960

split-complementary

#231E99 #99601E #56991E

monochromatic

#0C0A33 #171466 #231E99 #2F28CC #5A54DD

Accessibility & contrast

On white

12.23

#231E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#231E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E99

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E99	#FFFFFF	#000000	##FFFFFF
##231E99	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9C

Deuteranopia (green-blind)

#002F97

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231e99;
/* rgb */ color: rgb(35, 30, 153);
/* oklch */ color: oklch(34.9% 0.188 272.6);

Tailwind

colors: {
  custom: {
    50: '#745db8',
    500: '#231e99',
    950: '#000000',
  },
}

SCSS

$custom: #231e99;
$custom-light: #745db8;
$custom-dark: #000000;

JSON

{
  "hex": "#231e99",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 153
  },
  "hsl": {
    "h": 242.439,
    "s": 67.213,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3488,
    "c": 0.18787,
    "h": 272.6
  },
  "luminance": 0.03586
}

Semantic roles & 50–950 ramp

primary

#231E99

secondary

#BCC152

accent

#EA3EE3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231E99

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

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