#231C64#231C64

#231C64 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.121 H 279.9°. Best body text is #FFFFFF at 14.77:1 contrast (WCAG AA passes).

Color values

HEX	#231C64
RGB	rgb(35, 28, 100)
HSL	hsl(246, 56%, 25%)
HSV	hsv(246, 72%, 39%)
CMYK	cmyk(65%, 72%, 0%, 60.8%)
CIE-LAB	lab(16.04, 26.76, -41.39)
CIE-LCH	lch(16.04, 49.28, 302.89°)
OKLab	oklab(28.76% 0.0209 -0.1193)
OKLCH	oklch(28.76% 0.121 279.9)
XYZ	xyz(3.4079, 2.1077, 12.2814)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C64 #5D641C

analogous

#1C3964 #231C64 #471C64

triadic

#231C64 #64231C #1C6423

tetradic

#231C64 #641C39 #5D641C #1C6447

square

#231C64 #641C39 #5D641C #1C6447

split-complementary

#231C64 #64471C #39641C

monochromatic

#080718 #120F34 #231C64 #342994 #4437C4

Accessibility & contrast

On white

14.77

#231C64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#231C64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C64

14.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C64	#FFFFFF	#000000	##FFFFFF
##231C64	1.00	14.77	1.42	14.77
#FFFFFF	14.77	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B66

Deuteranopia (green-blind)

#002563

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #231c64;
/* rgb */ color: rgb(35, 28, 100);
/* oklch */ color: oklch(28.8% 0.121 279.9);

Tailwind

colors: {
  custom: {
    50: '#675991',
    500: '#231c64',
    950: '#000000',
  },
}

SCSS

$custom: #231c64;
$custom-light: #675991;
$custom-dark: #000000;

JSON

{
  "hex": "#231c64",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 100
  },
  "hsl": {
    "h": 245.833,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28759,
    "c": 0.12109,
    "h": 279.9
  },
  "luminance": 0.02108
}

Semantic roles & 50–950 ramp

primary

#231C64

secondary

#919943

accent

#E048D1

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #231C64

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

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