#180F71#180F71

#180F71 is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.5% C 0.154 H 273.5°. Best body text is #FFFFFF at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#180F71
RGB	rgb(24, 15, 113)
HSL	hsl(246, 77%, 25%)
HSV	hsv(246, 87%, 44%)
CMYK	cmyk(78.8%, 86.7%, 0%, 55.7%)
CIE-LAB	lab(13.99, 37.52, -53.32)
CIE-LCH	lch(13.99, 65.20, 305.13°)
OKLab	oklab(27.52% 0.0094 -0.1542)
OKLCH	oklch(27.52% 0.155 273.5)
XYZ	xyz(3.5272, 1.7277, 15.7672)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180F71 #68710F

analogous

#0F3771 #180F71 #490F71

triadic

#180F71 #71180F #0F7118

tetradic

#180F71 #710F37 #68710F #0F7149

square

#180F71 #710F37 #68710F #0F7149

split-complementary

#180F71 #71490F #37710F

monochromatic

#06041B #0D083B #180F71 #2316A7 #2F1DDD

Accessibility & contrast

On white

15.61

#180F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#180F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180F71

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180F71	#FFFFFF	#000000	##FFFFFF
##180F71	1.00	15.61	1.35	15.61
#FFFFFF	15.61	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002874

Deuteranopia (green-blind)

#001F6F

Tritanopia (blue-blind)

#002F41

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #180f71;
/* rgb */ color: rgb(24, 15, 113);
/* oklch */ color: oklch(27.5% 0.154 273.5);

Tailwind

colors: {
  custom: {
    50: '#67519b',
    500: '#180f71',
    950: '#000000',
  },
}

SCSS

$custom: #180f71;
$custom-light: #67519b;
$custom-dark: #000000;

JSON

{
  "hex": "#180f71",
  "rgb": {
    "r": 24,
    "g": 15,
    "b": 113
  },
  "hsl": {
    "h": 245.51,
    "s": 76.563,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27521,
    "c": 0.1545,
    "h": 273.5
  },
  "luminance": 0.01728
}

Semantic roles & 50–950 ramp

primary

#180F71

secondary

#9EA933

accent

#F335E2

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #180F71

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

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