#231B6F#231B6F

#231B6F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.7% C 0.137 H 278.2°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#231B6F
RGB	rgb(35, 27, 111)
HSL	hsl(246, 61%, 27%)
HSV	hsv(246, 76%, 44%)
CMYK	cmyk(68.5%, 75.7%, 0%, 56.5%)
CIE-LAB	lab(16.93, 31.28, -47.12)
CIE-LCH	lch(16.93, 56.56, 303.58°)
OKLab	oklab(29.74% 0.0197 -0.1361)
OKLCH	oklch(29.74% 0.137 278.2)
XYZ	xyz(3.9534, 2.2886, 15.2692)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B6F #676F1B

analogous

#1B3D6F #231B6F #4D1B6F

triadic

#231B6F #6F231B #1B6F23

tetradic

#231B6F #6F1B3D #676F1B #1B6F4D

square

#231B6F #6F1B3D #676F1B #1B6F4D

split-complementary

#231B6F #6F4D1B #3D6F1B

monochromatic

#080619 #130F3E #231B6F #3327A0 #4536CE

Accessibility & contrast

On white

14.41

#231B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#231B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B6F

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B6F	#FFFFFF	#000000	##FFFFFF
##231B6F	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D71

Deuteranopia (green-blind)

#00266D

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231b6f;
/* rgb */ color: rgb(35, 27, 111);
/* oklch */ color: oklch(29.7% 0.137 278.2);

Tailwind

colors: {
  custom: {
    50: '#695999',
    500: '#231b6f',
    950: '#000000',
  },
}

SCSS

$custom: #231b6f;
$custom-light: #695999;
$custom-dark: #000000;

JSON

{
  "hex": "#231b6f",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 111
  },
  "hsl": {
    "h": 245.714,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29739,
    "c": 0.13748,
    "h": 278.2
  },
  "luminance": 0.02289
}

Semantic roles & 50–950 ramp

primary

#231B6F

secondary

#9BA442

accent

#E444D5

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231B6F

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

Preview Lab → · Contrast checker → · Palette generator →