#231C78#231C78

#231C78 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.148 H 276.6°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#231C78
RGB	rgb(35, 28, 120)
HSL	hsl(245, 62%, 29%)
HSV	hsv(245, 77%, 47%)
CMYK	cmyk(70.8%, 76.7%, 0%, 52.9%)
CIE-LAB	lab(18.11, 33.80, -50.99)
CIE-LCH	lch(18.11, 61.18, 303.54°)
OKLab	oklab(30.87% 0.0171 -0.1473)
OKLCH	oklch(30.87% 0.148 276.6)
XYZ	xyz(4.4974, 2.5435, 18.0196)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C78 #71781C

analogous

#1C4378 #231C78 #511C78

triadic

#231C78 #78231C #1C7823

tetradic

#231C78 #781C43 #71781C #1C7851

square

#231C78 #781C43 #71781C #1C7851

split-complementary

#231C78 #78511C #43781C

monochromatic

#070619 #151046 #231C78 #3128AA #483DD2

Accessibility & contrast

On white

13.92

#231C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#231C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C78

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C78	#FFFFFF	#000000	##FFFFFF
##231C78	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307B

Deuteranopia (green-blind)

#002876

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231c78;
/* rgb */ color: rgb(35, 28, 120);
/* oklch */ color: oklch(30.9% 0.148 276.6);

Tailwind

colors: {
  custom: {
    50: '#6b5aa0',
    500: '#231c78',
    950: '#000000',
  },
}

SCSS

$custom: #231c78;
$custom-light: #6b5aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#231c78",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 120
  },
  "hsl": {
    "h": 244.565,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30867,
    "c": 0.14833,
    "h": 276.6
  },
  "luminance": 0.02544
}

Semantic roles & 50–950 ramp

primary

#231C78

secondary

#A4AC44

accent

#E543D9

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08040F

muted

#7A797F

Preview Lab

Preview with #231C78

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

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