#180E5A#180E5A

#180E5A is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.5% C 0.126 H 277.6°. Best body text is #FFFFFF at 16.81:1 contrast (WCAG AA passes).

Color values

HEX	#180E5A
RGB	rgb(24, 14, 90)
HSL	hsl(248, 73%, 20%)
HSV	hsv(248, 84%, 35%)
CMYK	cmyk(73.3%, 84.4%, 0%, 64.7%)
CIE-LAB	lab(10.89, 30.33, -43.22)
CIE-LCH	lch(10.89, 52.80, 305.06°)
OKLab	oklab(24.53% 0.0167 -0.1249)
OKLCH	oklch(24.53% 0.126 277.6)
XYZ	xyz(2.3786, 1.2462, 9.7861)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E5A #505A0E

analogous

#0E2A5A #180E5A #3E0E5A

triadic

#180E5A #5A180E #0E5A18

tetradic

#180E5A #5A0E2A #505A0E #0E5A3E

square

#180E5A #5A0E2A #505A0E #0E5A3E

split-complementary

#180E5A #5A3E0E #2A5A0E

monochromatic

#07041A #0A0625 #180E5A #26168F #341EC4

Accessibility & contrast

On white

16.81

#180E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#180E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E5A

16.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E5A	#FFFFFF	#000000	##FFFFFF
##180E5A	1.00	16.81	1.25	16.81
#FFFFFF	16.81	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205C

Deuteranopia (green-blind)

#001A59

Tritanopia (blue-blind)

#002534

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #180e5a;
/* rgb */ color: rgb(24, 14, 90);
/* oklch */ color: oklch(24.5% 0.126 277.6);

Tailwind

colors: {
  custom: {
    50: '#614f8a',
    500: '#180e5a',
    950: '#000000',
  },
}

SCSS

$custom: #180e5a;
$custom-light: #614f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#180e5a",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 90
  },
  "hsl": {
    "h": 247.895,
    "s": 73.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.24527,
    "c": 0.12598,
    "h": 277.6
  },
  "luminance": 0.01246
}

Semantic roles & 50–950 ramp

primary

#180E5A

secondary

#879430

accent

#F038D8

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #180E5A

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

Preview Lab → · Contrast checker → · Palette generator →