#231D7C#231D7C

#231D7C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.152 H 275.9°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#231D7C
RGB	rgb(35, 29, 124)
HSL	hsl(244, 62%, 30%)
HSV	hsv(244, 77%, 49%)
CMYK	cmyk(71.8%, 76.6%, 0%, 51.4%)
CIE-LAB	lab(18.76, 34.59, -52.48)
CIE-LCH	lch(18.76, 62.85, 303.39°)
OKLab	oklab(31.46% 0.0156 -0.1517)
OKLCH	oklch(31.46% 0.152 275.9)
XYZ	xyz(4.7694, 2.6909, 19.3329)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D7C #767C1D

analogous

#1D477C #231D7C #521D7C

triadic

#231D7C #7C231D #1D7C23

tetradic

#231D7C #7C1D47 #767C1D #1D7C52

square

#231D7C #7C1D47 #767C1D #1D7C52

split-complementary

#231D7C #7C521D #477C1D

monochromatic

#070619 #15114A #231D7C #3129AE #4A41D3

Accessibility & contrast

On white

13.65

#231D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#231D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D7C

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D7C	#FFFFFF	#000000	##FFFFFF
##231D7C	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327F

Deuteranopia (green-blind)

#00297A

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231d7c;
/* rgb */ color: rgb(35, 29, 124);
/* oklch */ color: oklch(31.5% 0.152 275.9);

Tailwind

colors: {
  custom: {
    50: '#6c5aa3',
    500: '#231d7c',
    950: '#000000',
  },
}

SCSS

$custom: #231d7c;
$custom-light: #6c5aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#231d7c",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 124
  },
  "hsl": {
    "h": 243.789,
    "s": 62.092,
    "l": 30
  },
  "oklch": {
    "l": 0.31455,
    "c": 0.15249,
    "h": 275.9
  },
  "luminance": 0.02691
}

Semantic roles & 50–950 ramp

primary

#231D7C

secondary

#A9B045

accent

#E543DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231D7C

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

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