#231B69#231B69

#231B69 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.1% C 0.129 H 279.3°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#231B69
RGB	rgb(35, 27, 105)
HSL	hsl(246, 59%, 26%)
HSV	hsv(246, 74%, 41%)
CMYK	cmyk(66.7%, 74.3%, 0%, 58.8%)
CIE-LAB	lab(16.31, 29.18, -44.24)
CIE-LCH	lch(16.31, 52.99, 303.41°)
OKLab	oklab(29.1% 0.0209 -0.1276)
OKLCH	oklch(29.1% 0.129 279.3)
XYZ	xyz(3.6341, 2.1608, 13.5874)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B69 #61691B

analogous

#1B3A69 #231B69 #4A1B69

triadic

#231B69 #69231B #1B6923

tetradic

#231B69 #691B3A #61691B #1B694A

square

#231B69 #691B3A #61691B #1B694A

split-complementary

#231B69 #694A1B #3A691B

monochromatic

#080618 #130E38 #231B69 #33289A #4334CA

Accessibility & contrast

On white

14.66

#231B69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#231B69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B69

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B69	#FFFFFF	#000000	##FFFFFF
##231B69	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6B

Deuteranopia (green-blind)

#002568

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #231b69;
/* rgb */ color: rgb(35, 27, 105);
/* oklch */ color: oklch(29.1% 0.129 279.3);

Tailwind

colors: {
  custom: {
    50: '#685895',
    500: '#231b69',
    950: '#000000',
  },
}

SCSS

$custom: #231b69;
$custom-light: #685895;
$custom-dark: #000000;

JSON

{
  "hex": "#231b69",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 105
  },
  "hsl": {
    "h": 246.154,
    "s": 59.091,
    "l": 25.882
  },
  "oklch": {
    "l": 0.29104,
    "c": 0.12931,
    "h": 279.3
  },
  "luminance": 0.02161
}

Semantic roles & 50–950 ramp

primary

#231B69

secondary

#959E42

accent

#E246D2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #231B69

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

Preview Lab → · Contrast checker → · Palette generator →