#18203D#18203D

#18203D is a dark, muted blue. Relative luminance 0.016; OKLCH L 25.2% C 0.056 H 270.4°. Best body text is #FFFFFF at 16.00:1 contrast (WCAG AA passes).

Color values

HEX	#18203D
RGB	rgb(24, 32, 61)
HSL	hsl(227, 44%, 17%)
HSV	hsv(227, 61%, 24%)
CMYK	cmyk(60.7%, 47.5%, 0%, 76.1%)
CIE-LAB	lab(13.01, 6.62, -19.76)
CIE-LCH	lch(13.01, 20.84, 288.51°)
OKLab	oklab(25.25% 0.0004 -0.056)
OKLCH	oklch(25.25% 0.056 270.4)
XYZ	xyz(1.7352, 1.5640, 4.6244)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18203D #3D3518

analogous

#18333D #18203D #23183D

triadic

#18203D #3D1820 #203D18

tetradic

#18203D #3D1833 #3D3518 #183D23

square

#18203D #3D1833 #3D3518 #183D23

split-complementary

#18203D #3D2318 #333D18

monochromatic

#090C16 #090C16 #18203D #293769 #3B4E95

Accessibility & contrast

On white

16.00

#18203D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#18203D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18203D

16.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18203D	#FFFFFF	#000000	##FFFFFF
##18203D	1.00	16.00	1.31	16.00
#FFFFFF	16.00	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14233E

Deuteranopia (green-blind)

#10203C

Tritanopia (blue-blind)

#07262B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #18203d;
/* rgb */ color: rgb(24, 32, 61);
/* oklch */ color: oklch(25.2% 0.056 270.4);

Tailwind

colors: {
  custom: {
    50: '#585b72',
    500: '#18203d',
    950: '#000000',
  },
}

SCSS

$custom: #18203d;
$custom-light: #585b72;
$custom-dark: #000000;

JSON

{
  "hex": "#18203d",
  "rgb": {
    "r": 24,
    "g": 32,
    "b": 61
  },
  "hsl": {
    "h": 227.027,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.25247,
    "c": 0.05605,
    "h": 270.4
  },
  "luminance": 0.01564
}

Semantic roles & 50–950 ramp

primary

#18203D

secondary

#73683D

accent

#B855D3

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #18203D

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

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