#231C7A#231C7A

#231C7A is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.151 H 276.3°. Best body text is #FFFFFF at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#231C7A
RGB	rgb(35, 28, 122)
HSL	hsl(244, 63%, 29%)
HSV	hsv(244, 77%, 48%)
CMYK	cmyk(71.3%, 77%, 0%, 52.2%)
CIE-LAB	lab(18.33, 34.49, -51.91)
CIE-LCH	lch(18.33, 62.32, 303.60°)
OKLab	oklab(31.09% 0.0166 -0.15)
OKLCH	oklch(31.09% 0.151 276.3)
XYZ	xyz(4.6201, 2.5926, 18.6655)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C7A #737A1C

analogous

#1C447A #231C7A #521C7A

triadic

#231C7A #7A231C #1C7A23

tetradic

#231C7A #7A1C44 #737A1C #1C7A52

square

#231C7A #7A1C44 #737A1C #1C7A52

split-complementary

#231C7A #7A521C #447A1C

monochromatic

#070619 #151148 #231C7A #3127AC #493ED3

Accessibility & contrast

On white

13.83

#231C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#231C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C7A

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C7A	#FFFFFF	#000000	##FFFFFF
##231C7A	1.00	13.83	1.52	13.83
#FFFFFF	13.83	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317D

Deuteranopia (green-blind)

#002978

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231c7a;
/* rgb */ color: rgb(35, 28, 122);
/* oklch */ color: oklch(31.1% 0.151 276.3);

Tailwind

colors: {
  custom: {
    50: '#6c5aa1',
    500: '#231c7a',
    950: '#000000',
  },
}

SCSS

$custom: #231c7a;
$custom-light: #6c5aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#231c7a",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 122
  },
  "hsl": {
    "h": 244.468,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31087,
    "c": 0.15094,
    "h": 276.3
  },
  "luminance": 0.02593
}

Semantic roles & 50–950 ramp

primary

#231C7A

secondary

#A6AE44

accent

#E642DA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231C7A

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

Preview Lab → · Contrast checker → · Palette generator →