#18278F#18278F

#18278F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.169 H 268.3°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#18278F
RGB	rgb(24, 39, 143)
HSL	hsl(232, 71%, 33%)
HSV	hsv(232, 83%, 56%)
CMYK	cmyk(83.2%, 72.7%, 0%, 43.9%)
CIE-LAB	lab(22.40, 34.21, -58.45)
CIE-LCH	lch(22.40, 67.72, 300.34°)
OKLab	oklab(34.5% -0.005 -0.1694)
OKLCH	oklch(34.5% 0.169 268.3)
XYZ	xyz(6.0584, 3.6277, 26.3622)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18278F #8F8018

analogous

#18628F #18278F #44188F

triadic

#18278F #8F1827 #278F18

tetradic

#18278F #8F1862 #8F8018 #188F44

square

#18278F #8F1862 #8F8018 #188F44

split-complementary

#18278F #8F4418 #628F18

monochromatic

#060A26 #0F195B #18278F #2135C3 #4256DF

Accessibility & contrast

On white

12.17

#18278F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#18278F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18278F

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18278F	#FFFFFF	#000000	##FFFFFF
##18278F	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B92

Deuteranopia (green-blind)

#00308D

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18278f;
/* rgb */ color: rgb(24, 39, 143);
/* oklch */ color: oklch(34.5% 0.169 268.3);

Tailwind

colors: {
  custom: {
    50: '#6d61b1',
    500: '#18278f',
    950: '#000000',
  },
}

SCSS

$custom: #18278f;
$custom-light: #6d61b1;
$custom-dark: #000000;

JSON

{
  "hex": "#18278f",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 143
  },
  "hsl": {
    "h": 232.437,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34499,
    "c": 0.16943,
    "h": 268.3
  },
  "luminance": 0.03628
}

Semantic roles & 50–950 ramp

primary

#18278F

secondary

#C0B043

accent

#D73AEE

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #18278F

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

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