#231B6D#231B6D

#231B6D is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.135 H 278.6°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#231B6D
RGB	rgb(35, 27, 109)
HSL	hsl(246, 60%, 27%)
HSV	hsv(246, 75%, 43%)
CMYK	cmyk(67.9%, 75.2%, 0%, 57.3%)
CIE-LAB	lab(16.72, 30.58, -46.17)
CIE-LCH	lch(16.72, 55.38, 303.52°)
OKLab	oklab(29.53% 0.0201 -0.1333)
OKLCH	oklch(29.53% 0.135 278.6)
XYZ	xyz(3.8445, 2.2450, 14.6958)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B6D #656D1B

analogous

#1B3C6D #231B6D #4C1B6D

triadic

#231B6D #6D231B #1B6D23

tetradic

#231B6D #6D1B3C #656D1B #1B6D4C

square

#231B6D #6D1B3C #656D1B #1B6D4C

split-complementary

#231B6D #6D4C1B #3C6D1B

monochromatic

#080619 #130F3C #231B6D #33279E #4435CD

Accessibility & contrast

On white

14.49

#231B6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#231B6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B6D

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B6D	#FFFFFF	#000000	##FFFFFF
##231B6D	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6F

Deuteranopia (green-blind)

#00266B

Tritanopia (blue-blind)

#003242

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231b6d;
/* rgb */ color: rgb(35, 27, 109);
/* oklch */ color: oklch(29.5% 0.135 278.6);

Tailwind

colors: {
  custom: {
    50: '#695898',
    500: '#231b6d',
    950: '#000000',
  },
}

SCSS

$custom: #231b6d;
$custom-light: #695898;
$custom-dark: #000000;

JSON

{
  "hex": "#231b6d",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 109
  },
  "hsl": {
    "h": 245.854,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29525,
    "c": 0.13477,
    "h": 278.6
  },
  "luminance": 0.02245
}

Semantic roles & 50–950 ramp

primary

#231B6D

secondary

#99A242

accent

#E344D4

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231B6D

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

Preview Lab → · Contrast checker → · Palette generator →