#18203E#18203E

#18203E is a dark, muted blue. Relative luminance 0.016; OKLCH L 25.3% C 0.058 H 270.6°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#18203E
RGB	rgb(24, 32, 62)
HSL	hsl(227, 44%, 17%)
HSV	hsv(227, 61%, 24%)
CMYK	cmyk(61.3%, 48.4%, 0%, 75.7%)
CIE-LAB	lab(13.08, 7.01, -20.36)
CIE-LCH	lch(13.08, 21.53, 289.00°)
OKLab	oklab(25.32% 0.0006 -0.0578)
OKLCH	oklch(25.32% 0.058 270.6)
XYZ	xyz(1.7624, 1.5749, 4.7676)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18203E #3E3618

analogous

#18333E #18203E #23183E

triadic

#18203E #3E1820 #203E18

tetradic

#18203E #3E1833 #3E3618 #183E23

square

#18203E #3E1833 #3E3618 #183E23

split-complementary

#18203E #3E2318 #333E18

monochromatic

#090B16 #090B16 #18203E #29376A #3A4E96

Accessibility & contrast

On white

15.97

#18203E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#18203E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18203E

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18203E	#FFFFFF	#000000	##FFFFFF
##18203E	1.00	15.97	1.32	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13233F

Deuteranopia (green-blind)

#0F203D

Tritanopia (blue-blind)

#06272B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #18203e;
/* rgb */ color: rgb(24, 32, 62);
/* oklch */ color: oklch(25.3% 0.058 270.6);

Tailwind

colors: {
  custom: {
    50: '#585b73',
    500: '#18203e',
    950: '#000000',
  },
}

SCSS

$custom: #18203e;
$custom-light: #585b73;
$custom-dark: #000000;

JSON

{
  "hex": "#18203e",
  "rgb": {
    "r": 24,
    "g": 32,
    "b": 62
  },
  "hsl": {
    "h": 227.368,
    "s": 44.186,
    "l": 16.863
  },
  "oklch": {
    "l": 0.2532,
    "c": 0.0578,
    "h": 270.6
  },
  "luminance": 0.01575
}

Semantic roles & 50–950 ramp

primary

#18203E

secondary

#74693D

accent

#B954D4

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #18203E

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

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