#180E59#180E59

#180E59 is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.4% C 0.125 H 277.8°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#180E59
RGB	rgb(24, 14, 89)
HSL	hsl(248, 73%, 20%)
HSV	hsv(248, 84%, 35%)
CMYK	cmyk(73%, 84.3%, 0%, 65.1%)
CIE-LAB	lab(10.77, 29.98, -42.74)
CIE-LCH	lch(10.77, 52.21, 305.05°)
OKLab	oklab(24.41% 0.017 -0.1235)
OKLCH	oklch(24.41% 0.125 277.8)
XYZ	xyz(2.3363, 1.2293, 9.5634)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E59 #4F590E

analogous

#0E2959 #180E59 #3D0E59

triadic

#180E59 #59180E #0E5918

tetradic

#180E59 #590E29 #4F590E #0E593D

square

#180E59 #590E29 #4F590E #0E593D

split-complementary

#180E59 #593D0E #29590E

monochromatic

#07041A #0A0624 #180E59 #26168E #351FC3

Accessibility & contrast

On white

16.85

#180E59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#180E59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E59

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E59	#FFFFFF	#000000	##FFFFFF
##180E59	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205B

Deuteranopia (green-blind)

#001A58

Tritanopia (blue-blind)

#002533

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #180e59;
/* rgb */ color: rgb(24, 14, 89);
/* oklch */ color: oklch(24.4% 0.125 277.8);

Tailwind

colors: {
  custom: {
    50: '#604e89',
    500: '#180e59',
    950: '#000000',
  },
}

SCSS

$custom: #180e59;
$custom-light: #604e89;
$custom-dark: #000000;

JSON

{
  "hex": "#180e59",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 89
  },
  "hsl": {
    "h": 248,
    "s": 72.816,
    "l": 20.196
  },
  "oklch": {
    "l": 0.24406,
    "c": 0.12465,
    "h": 277.8
  },
  "luminance": 0.0123
}

Semantic roles & 50–950 ramp

primary

#180E59

secondary

#869330

accent

#F038D7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #180E59

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

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