#180A4D#180A4D

#180A4D is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 22.4% C 0.113 H 281.9°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#180A4D
RGB	rgb(24, 10, 77)
HSL	hsl(253, 77%, 17%)
HSV	hsv(253, 87%, 30%)
CMYK	cmyk(68.8%, 87%, 0%, 69.8%)
CIE-LAB	lab(8.54, 28.09, -38.21)
CIE-LCH	lch(8.54, 47.42, 306.32°)
OKLab	oklab(22.42% 0.0233 -0.1102)
OKLCH	oklch(22.42% 0.113 281.9)
XYZ	xyz(1.8244, 0.9470, 7.1064)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A4D #3F4D0A

analogous

#0A1E4D #180A4D #3A0A4D

triadic

#180A4D #4D180A #0A4D18

tetradic

#180A4D #4D0A1E #3F4D0A #0A4D3A

square

#180A4D #4D0A1E #3F4D0A #0A4D3A

split-complementary

#180A4D #4D3A0A #1E4D0A

monochromatic

#08041B #08041B #180A4D #291183 #3A18B9

Accessibility & contrast

On white

17.66

#180A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#180A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A4D

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A4D	#FFFFFF	#000000	##FFFFFF
##180A4D	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4F

Deuteranopia (green-blind)

#00164C

Tritanopia (blue-blind)

#001E2C

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #180a4d;
/* rgb */ color: rgb(24, 10, 77);
/* oklch */ color: oklch(22.4% 0.113 281.9);

Tailwind

colors: {
  custom: {
    50: '#5e4b80',
    500: '#180a4d',
    950: '#000000',
  },
}

SCSS

$custom: #180a4d;
$custom-light: #5e4b80;
$custom-dark: #000000;

JSON

{
  "hex": "#180a4d",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 77
  },
  "hsl": {
    "h": 252.537,
    "s": 77.011,
    "l": 17.059
  },
  "oklch": {
    "l": 0.22418,
    "c": 0.11267,
    "h": 281.9
  },
  "luminance": 0.00947
}

Semantic roles & 50–950 ramp

primary

#180A4D

secondary

#758A29

accent

#F434CC

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180A4D

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

Preview Lab → · Contrast checker → · Palette generator →