#180F66#180F66

#180F66 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.1% C 0.141 H 275.1°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#180F66
RGB	rgb(24, 15, 102)
HSL	hsl(246, 74%, 23%)
HSV	hsv(246, 85%, 40%)
CMYK	cmyk(76.5%, 85.3%, 0%, 60%)
CIE-LAB	lab(12.58, 33.87, -48.45)
CIE-LCH	lch(12.58, 59.12, 304.96°)
OKLab	oklab(26.14% 0.0126 -0.1401)
OKLCH	oklch(26.14% 0.141 275.1)
XYZ	xyz(2.9450, 1.4949, 12.7011)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180F66 #5D660F

analogous

#0F3166 #180F66 #430F66

triadic

#180F66 #66180F #0F6618

tetradic

#180F66 #660F31 #5D660F #0F6643

square

#180F66 #660F31 #5D660F #0F6643

split-complementary

#180F66 #66430F #31660F

monochromatic

#06041B #0B0731 #180F66 #25179B #311FD1

Accessibility & contrast

On white

16.17

#180F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#180F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180F66

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180F66	#FFFFFF	#000000	##FFFFFF
##180F66	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002468

Deuteranopia (green-blind)

#001D65

Tritanopia (blue-blind)

#002A3B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #180f66;
/* rgb */ color: rgb(24, 15, 102);
/* oklch */ color: oklch(26.1% 0.141 275.1);

Tailwind

colors: {
  custom: {
    50: '#645093',
    500: '#180f66',
    950: '#000000',
  },
}

SCSS

$custom: #180f66;
$custom-light: #645093;
$custom-dark: #000000;

JSON

{
  "hex": "#180f66",
  "rgb": {
    "r": 24,
    "g": 15,
    "b": 102
  },
  "hsl": {
    "h": 246.207,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.26135,
    "c": 0.14067,
    "h": 275.1
  },
  "luminance": 0.01495
}

Semantic roles & 50–950 ramp

primary

#180F66

secondary

#939F32

accent

#F137DE

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #180F66

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

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