#180D54#180D54

#180D54 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.7% C 0.119 H 279.2°. Best body text is #FFFFFF at 17.15:1 contrast (WCAG AA passes).

Color values

HEX	#180D54
RGB	rgb(24, 13, 84)
HSL	hsl(249, 73%, 19%)
HSV	hsv(249, 85%, 33%)
CMYK	cmyk(71.4%, 84.5%, 0%, 67.1%)
CIE-LAB	lab(9.97, 28.82, -40.67)
CIE-LCH	lch(9.97, 49.85, 305.32°)
OKLab	oklab(23.67% 0.0191 -0.1174)
OKLCH	oklch(23.67% 0.119 279.2)
XYZ	xyz(2.1203, 1.1220, 8.4906)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180D54 #49540D

analogous

#0D2654 #180D54 #3C0D54

triadic

#180D54 #54180D #0D5418

tetradic

#180D54 #540D26 #49540D #0D543C

square

#180D54 #540D26 #49540D #0D543C

split-complementary

#180D54 #543C0D #26540D

monochromatic

#08041A #09051F #180D54 #271589 #361DBE

Accessibility & contrast

On white

17.15

#180D54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#180D54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180D54

17.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180D54	#FFFFFF	#000000	##FFFFFF
##180D54	1.00	17.15	1.22	17.15
#FFFFFF	17.15	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E56

Deuteranopia (green-blind)

#001953

Tritanopia (blue-blind)

#002230

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #180d54;
/* rgb */ color: rgb(24, 13, 84);
/* oklch */ color: oklch(23.7% 0.119 279.2);

Tailwind

colors: {
  custom: {
    50: '#5f4e85',
    500: '#180d54',
    950: '#000000',
  },
}

SCSS

$custom: #180d54;
$custom-light: #5f4e85;
$custom-dark: #000000;

JSON

{
  "hex": "#180d54",
  "rgb": {
    "r": 24,
    "g": 13,
    "b": 84
  },
  "hsl": {
    "h": 249.296,
    "s": 73.196,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23665,
    "c": 0.11899,
    "h": 279.2
  },
  "luminance": 0.01122
}

Semantic roles & 50–950 ramp

primary

#180D54

secondary

#808F2E

accent

#F038D3

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #180D54

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

Preview Lab → · Contrast checker → · Palette generator →