#180E5B#180E5B

#180E5B is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.6% C 0.127 H 277.4°. Best body text is #FFFFFF at 16.76:1 contrast (WCAG AA passes).

Color values

HEX	#180E5B
RGB	rgb(24, 14, 91)
HSL	hsl(248, 73%, 21%)
HSV	hsv(248, 85%, 36%)
CMYK	cmyk(73.6%, 84.6%, 0%, 64.3%)
CIE-LAB	lab(11.02, 30.67, -43.69)
CIE-LCH	lch(11.02, 53.38, 305.07°)
OKLab	oklab(24.65% 0.0164 -0.1262)
OKLCH	oklch(24.65% 0.127 277.4)
XYZ	xyz(2.4214, 1.2634, 10.0117)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E5B #515B0E

analogous

#0E2A5B #180E5B #3E0E5B

triadic

#180E5B #5B180E #0E5B18

tetradic

#180E5B #5B0E2A #515B0E #0E5B3E

square

#180E5B #5B0E2A #515B0E #0E5B3E

split-complementary

#180E5B #5B3E0E #2A5B0E

monochromatic

#07041B #0A0626 #180E5B #261690 #341EC5

Accessibility & contrast

On white

16.76

#180E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#180E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E5B

16.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E5B	#FFFFFF	#000000	##FFFFFF
##180E5B	1.00	16.76	1.25	16.76
#FFFFFF	16.76	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215D

Deuteranopia (green-blind)

#001A5A

Tritanopia (blue-blind)

#002534

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #180e5b;
/* rgb */ color: rgb(24, 14, 91);
/* oklch */ color: oklch(24.6% 0.127 277.4);

Tailwind

colors: {
  custom: {
    50: '#614f8a',
    500: '#180e5b',
    950: '#000000',
  },
}

SCSS

$custom: #180e5b;
$custom-light: #614f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#180e5b",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 91
  },
  "hsl": {
    "h": 247.792,
    "s": 73.333,
    "l": 20.588
  },
  "oklch": {
    "l": 0.24649,
    "c": 0.1273,
    "h": 277.4
  },
  "luminance": 0.01264
}

Semantic roles & 50–950 ramp

primary

#180E5B

secondary

#889530

accent

#F038D8

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #180E5B

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

Preview Lab → · Contrast checker → · Palette generator →