#180F5D#180F5D

#180F5D is a dark, vivid blue. Relative luminance 0.013; OKLCH L 25.0% C 0.129 H 276.8°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#180F5D
RGB	rgb(24, 15, 93)
HSL	hsl(247, 72%, 21%)
HSV	hsv(247, 84%, 36%)
CMYK	cmyk(74.2%, 83.9%, 0%, 63.5%)
CIE-LAB	lab(11.46, 30.80, -44.31)
CIE-LCH	lch(11.46, 53.97, 304.81°)
OKLab	oklab(25.03% 0.0153 -0.1281)
OKLCH	oklch(25.03% 0.129 276.8)
XYZ	xyz(2.5227, 1.3259, 10.4768)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180F5D #545D0F

analogous

#0F2D5D #180F5D #3F0F5D

triadic

#180F5D #5D180F #0F5D18

tetradic

#180F5D #5D0F2D #545D0F #0F5D3F

square

#180F5D #5D0F2D #545D0F #0F5D3F

split-complementary

#180F5D #5D3F0F #2D5D0F

monochromatic

#07041A #0A0628 #180F5D #261792 #3320C6

Accessibility & contrast

On white

16.60

#180F5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#180F5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180F5D

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180F5D	#FFFFFF	#000000	##FFFFFF
##180F5D	1.00	16.60	1.27	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225F

Deuteranopia (green-blind)

#001B5C

Tritanopia (blue-blind)

#002736

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #180f5d;
/* rgb */ color: rgb(24, 15, 93);
/* oklch */ color: oklch(25.0% 0.129 276.8);

Tailwind

colors: {
  custom: {
    50: '#614f8c',
    500: '#180f5d',
    950: '#000000',
  },
}

SCSS

$custom: #180f5d;
$custom-light: #614f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#180f5d",
  "rgb": {
    "r": 24,
    "g": 15,
    "b": 93
  },
  "hsl": {
    "h": 246.923,
    "s": 72.222,
    "l": 21.176
  },
  "oklch": {
    "l": 0.25027,
    "c": 0.12896,
    "h": 276.8
  },
  "luminance": 0.01326
}

Semantic roles & 50–950 ramp

primary

#180F5D

secondary

#8B9631

accent

#EF39DA

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #180F5D

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

Preview Lab → · Contrast checker → · Palette generator →