#180C5F#180C5F

#180C5F is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.9% C 0.134 H 276.9°. Best body text is #FFFFFF at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#180C5F
RGB	rgb(24, 12, 95)
HSL	hsl(249, 78%, 21%)
HSV	hsv(249, 87%, 37%)
CMYK	cmyk(74.7%, 87.4%, 0%, 62.7%)
CIE-LAB	lab(11.16, 33.08, -46.15)
CIE-LCH	lch(11.16, 56.78, 305.63°)
OKLab	oklab(24.89% 0.0161 -0.1333)
OKLCH	oklch(24.89% 0.134 276.9)
XYZ	xyz(2.5730, 1.2831, 10.9363)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C5F #535F0C

analogous

#0C295F #180C5F #410C5F

triadic

#180C5F #5F180C #0C5F18

tetradic

#180C5F #5F0C29 #535F0C #0C5F41

square

#180C5F #5F0C29 #535F0C #0C5F41

split-complementary

#180C5F #5F410C #295F0C

monochromatic

#07031B #0A0529 #180C5F #261395 #331ACC

Accessibility & contrast

On white

16.71

#180C5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#180C5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C5F

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C5F	#FFFFFF	#000000	##FFFFFF
##180C5F	1.00	16.71	1.26	16.71
#FFFFFF	16.71	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002161

Deuteranopia (green-blind)

#001A5E

Tritanopia (blue-blind)

#002636

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #180c5f;
/* rgb */ color: rgb(24, 12, 95);
/* oklch */ color: oklch(24.9% 0.134 276.9);

Tailwind

colors: {
  custom: {
    50: '#624e8d',
    500: '#180c5f',
    950: '#000000',
  },
}

SCSS

$custom: #180c5f;
$custom-light: #624e8d;
$custom-dark: #000000;

JSON

{
  "hex": "#180c5f",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 95
  },
  "hsl": {
    "h": 248.675,
    "s": 77.57,
    "l": 20.98
  },
  "oklch": {
    "l": 0.24893,
    "c": 0.13432,
    "h": 276.9
  },
  "luminance": 0.01283
}

Semantic roles & 50–950 ramp

primary

#180C5F

secondary

#8A992D

accent

#F434D8

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #180C5F

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

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