#231B6B#231B6B

#231B6B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.132 H 278.9°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#231B6B
RGB	rgb(35, 27, 107)
HSL	hsl(246, 60%, 26%)
HSV	hsv(246, 75%, 42%)
CMYK	cmyk(67.3%, 74.8%, 0%, 58%)
CIE-LAB	lab(16.52, 29.88, -45.21)
CIE-LCH	lch(16.52, 54.19, 303.47°)
OKLab	oklab(29.31% 0.0205 -0.1304)
OKLCH	oklch(29.31% 0.132 278.9)
XYZ	xyz(3.7381, 2.2024, 14.1352)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B6B #636B1B

analogous

#1B3B6B #231B6B #4B1B6B

triadic

#231B6B #6B231B #1B6B23

tetradic

#231B6B #6B1B3B #636B1B #1B6B4B

square

#231B6B #6B1B3B #636B1B #1B6B4B

split-complementary

#231B6B #6B4B1B #3B6B1B

monochromatic

#080618 #130F3A #231B6B #33279C #4435CC

Accessibility & contrast

On white

14.58

#231B6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#231B6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B6B

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B6B	#FFFFFF	#000000	##FFFFFF
##231B6B	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6D

Deuteranopia (green-blind)

#00266A

Tritanopia (blue-blind)

#003141

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231b6b;
/* rgb */ color: rgb(35, 27, 107);
/* oklch */ color: oklch(29.3% 0.132 278.9);

Tailwind

colors: {
  custom: {
    50: '#685896',
    500: '#231b6b',
    950: '#000000',
  },
}

SCSS

$custom: #231b6b;
$custom-light: #685896;
$custom-dark: #000000;

JSON

{
  "hex": "#231b6b",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 107
  },
  "hsl": {
    "h": 246,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29314,
    "c": 0.13205,
    "h": 278.9
  },
  "luminance": 0.02203
}

Semantic roles & 50–950 ramp

primary

#231B6B

secondary

#97A042

accent

#E345D3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #231B6B

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

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