#18288D#18288D

#18288D is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.166 H 268.2°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#18288D
RGB	rgb(24, 40, 141)
HSL	hsl(232, 71%, 32%)
HSV	hsv(232, 83%, 55%)
CMYK	cmyk(83%, 71.6%, 0%, 44.7%)
CIE-LAB	lab(22.42, 32.82, -57.17)
CIE-LCH	lch(22.42, 65.92, 299.86°)
OKLab	oklab(34.45% -0.0052 -0.1656)
OKLCH	oklch(34.45% 0.166 268.2)
XYZ	xyz(5.9415, 3.6342, 25.5825)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18288D #8D7D18

analogous

#18628D #18288D #43188D

triadic

#18288D #8D1828 #288D18

tetradic

#18288D #8D1862 #8D7D18 #188D43

square

#18288D #8D1862 #8D7D18 #188D43

split-complementary

#18288D #8D4318 #628D18

monochromatic

#060A24 #0F1959 #18288D #2137C1 #4156DF

Accessibility & contrast

On white

12.16

#18288D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#18288D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18288D

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18288D	#FFFFFF	#000000	##FFFFFF
##18288D	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B90

Deuteranopia (green-blind)

#00308B

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18288d;
/* rgb */ color: rgb(24, 40, 141);
/* oklch */ color: oklch(34.5% 0.166 268.2);

Tailwind

colors: {
  custom: {
    50: '#6c62af',
    500: '#18288d',
    950: '#000000',
  },
}

SCSS

$custom: #18288d;
$custom-light: #6c62af;
$custom-dark: #000000;

JSON

{
  "hex": "#18288d",
  "rgb": {
    "r": 24,
    "g": 40,
    "b": 141
  },
  "hsl": {
    "h": 231.795,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.34452,
    "c": 0.16571,
    "h": 268.2
  },
  "luminance": 0.03635
}

Semantic roles & 50–950 ramp

primary

#18288D

secondary

#BFAE42

accent

#D53AEE

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #18288D

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

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