#231B6C#231B6C

#231B6C is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.133 H 278.7°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#231B6C
RGB	rgb(35, 27, 108)
HSL	hsl(246, 60%, 26%)
HSV	hsv(246, 75%, 42%)
CMYK	cmyk(67.6%, 75%, 0%, 57.6%)
CIE-LAB	lab(16.62, 30.23, -45.69)
CIE-LCH	lch(16.62, 54.79, 303.49°)
OKLab	oklab(29.42% 0.0203 -0.1319)
OKLCH	oklch(29.42% 0.133 278.7)
XYZ	xyz(3.7910, 2.2236, 14.4139)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B6C #646C1B

analogous

#1B3C6C #231B6C #4C1B6C

triadic

#231B6C #6C231B #1B6C23

tetradic

#231B6C #6C1B3C #646C1B #1B6C4C

square

#231B6C #6C1B3C #646C1B #1B6C4C

split-complementary

#231B6C #6C4C1B #3C6C1B

monochromatic

#080618 #130F3B #231B6C #33279D #4435CC

Accessibility & contrast

On white

14.53

#231B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#231B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B6C

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B6C	#FFFFFF	#000000	##FFFFFF
##231B6C	1.00	14.53	1.44	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6E

Deuteranopia (green-blind)

#00266A

Tritanopia (blue-blind)

#003141

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231b6c;
/* rgb */ color: rgb(35, 27, 108);
/* oklch */ color: oklch(29.4% 0.133 278.7);

Tailwind

colors: {
  custom: {
    50: '#695897',
    500: '#231b6c',
    950: '#000000',
  },
}

SCSS

$custom: #231b6c;
$custom-light: #695897;
$custom-dark: #000000;

JSON

{
  "hex": "#231b6c",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 108
  },
  "hsl": {
    "h": 245.926,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.29419,
    "c": 0.13341,
    "h": 278.7
  },
  "luminance": 0.02224
}

Semantic roles & 50–950 ramp

primary

#231B6C

secondary

#98A142

accent

#E345D3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231B6C

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

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