#231F89#231F89

#231F89 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.167 H 274.0°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#231F89
RGB	rgb(35, 31, 137)
HSL	hsl(242, 63%, 33%)
HSV	hsv(242, 77%, 54%)
CMYK	cmyk(74.5%, 77.4%, 0%, 46.3%)
CIE-LAB	lab(20.61, 37.89, -57.64)
CIE-LCH	lch(20.61, 68.98, 303.31°)
OKLab	oklab(33.19% 0.0117 -0.1667)
OKLCH	oklch(33.19% 0.167 274)
XYZ	xyz(5.6970, 3.1429, 23.9685)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F89 #85891F

analogous

#1F5089 #231F89 #581F89

triadic

#231F89 #89231F #1F8923

tetradic

#231F89 #891F50 #85891F #1F8958

square

#231F89 #891F50 #85891F #1F8958

split-complementary

#231F89 #89581F #50891F

monochromatic

#090825 #161457 #231F89 #302ABB #514CD6

Accessibility & contrast

On white

12.89

#231F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#231F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F89

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F89	#FFFFFF	#000000	##FFFFFF
##231F89	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368C

Deuteranopia (green-blind)

#002D87

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #231f89;
/* rgb */ color: rgb(35, 31, 137);
/* oklch */ color: oklch(33.2% 0.167 274.0);

Tailwind

colors: {
  custom: {
    50: '#6f5cad',
    500: '#231f89',
    950: '#000000',
  },
}

SCSS

$custom: #231f89;
$custom-light: #6f5cad;
$custom-dark: #000000;

JSON

{
  "hex": "#231f89",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 137
  },
  "hsl": {
    "h": 242.264,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33188,
    "c": 0.16716,
    "h": 274
  },
  "luminance": 0.03143
}

Semantic roles & 50–950 ramp

primary

#231F89

secondary

#B5B94B

accent

#E642E0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #231F89

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

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