#180E57#180E57

#180E57 is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.2% C 0.122 H 278.3°. Best body text is #FFFFFF at 16.95:1 contrast (WCAG AA passes).

Color values

HEX	#180E57
RGB	rgb(24, 14, 87)
HSL	hsl(248, 72%, 20%)
HSV	hsv(248, 84%, 34%)
CMYK	cmyk(72.4%, 83.9%, 0%, 65.9%)
CIE-LAB	lab(10.53, 29.29, -41.79)
CIE-LCH	lch(10.53, 51.03, 305.03°)
OKLab	oklab(24.16% 0.0176 -0.1207)
OKLCH	oklch(24.16% 0.122 278.3)
XYZ	xyz(2.2535, 1.1962, 9.1271)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E57 #4D570E

analogous

#0E2957 #180E57 #3C0E57

triadic

#180E57 #57180E #0E5718

tetradic

#180E57 #570E29 #4D570E #0E573C

square

#180E57 #570E29 #4D570E #0E573C

split-complementary

#180E57 #573C0E #29570E

monochromatic

#07041A #090622 #180E57 #27168C #351FC0

Accessibility & contrast

On white

16.95

#180E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#180E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E57

16.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E57	#FFFFFF	#000000	##FFFFFF
##180E57	1.00	16.95	1.24	16.95
#FFFFFF	16.95	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F59

Deuteranopia (green-blind)

#001A56

Tritanopia (blue-blind)

#002432

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #180e57;
/* rgb */ color: rgb(24, 14, 87);
/* oklch */ color: oklch(24.2% 0.122 278.3);

Tailwind

colors: {
  custom: {
    50: '#604e87',
    500: '#180e57',
    950: '#000000',
  },
}

SCSS

$custom: #180e57;
$custom-light: #604e87;
$custom-dark: #000000;

JSON

{
  "hex": "#180e57",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 87
  },
  "hsl": {
    "h": 248.219,
    "s": 72.277,
    "l": 19.804
  },
  "oklch": {
    "l": 0.24164,
    "c": 0.12198,
    "h": 278.3
  },
  "luminance": 0.01196
}

Semantic roles & 50–950 ramp

primary

#180E57

secondary

#849130

accent

#EF39D6

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020B

muted

#7A787C

Preview Lab

Preview with #180E57

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

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