#18213C#18213C

#18213C is a dark, muted blue. Relative luminance 0.016; OKLCH L 25.4% C 0.053 H 268.6°. Best body text is #FFFFFF at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#18213C
RGB	rgb(24, 33, 60)
HSL	hsl(225, 43%, 16%)
HSV	hsv(225, 60%, 24%)
CMYK	cmyk(60%, 45%, 0%, 76.5%)
CIE-LAB	lab(13.28, 5.47, -18.63)
CIE-LCH	lch(13.28, 19.42, 286.37°)
OKLab	oklab(25.43% -0.0013 -0.0527)
OKLCH	oklch(25.43% 0.053 268.6)
XYZ	xyz(1.7359, 1.6080, 4.4930)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18213C #3C3318

analogous

#18333C #18213C #21183C

triadic

#18213C #3C1821 #213C18

tetradic

#18213C #3C1833 #3C3318 #183C21

square

#18213C #3C1833 #3C3318 #183C21

split-complementary

#18213C #3C2118 #333C18

monochromatic

#090C16 #090C16 #18213C #293968 #3B5193

Accessibility & contrast

On white

15.89

#18213C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#18213C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18213C

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18213C	#FFFFFF	#000000	##FFFFFF
##18213C	1.00	15.89	1.32	15.89
#FFFFFF	15.89	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16243D

Deuteranopia (green-blind)

#12213B

Tritanopia (blue-blind)

#07272B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #18213c;
/* rgb */ color: rgb(24, 33, 60);
/* oklch */ color: oklch(25.4% 0.053 268.6);

Tailwind

colors: {
  custom: {
    50: '#585b72',
    500: '#18213c',
    950: '#000000',
  },
}

SCSS

$custom: #18213c;
$custom-light: #585b72;
$custom-dark: #000000;

JSON

{
  "hex": "#18213c",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 60
  },
  "hsl": {
    "h": 225,
    "s": 42.857,
    "l": 16.471
  },
  "oklch": {
    "l": 0.25433,
    "c": 0.05275,
    "h": 268.6
  },
  "luminance": 0.01608
}

Semantic roles & 50–950 ramp

primary

#18213C

secondary

#72653E

accent

#B355D3

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #18213C

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

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