#18243F#18243F

#18243F is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.4% C 0.053 H 264.9°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#18243F
RGB	rgb(24, 36, 63)
HSL	hsl(222, 45%, 17%)
HSV	hsv(222, 62%, 25%)
CMYK	cmyk(61.9%, 42.9%, 0%, 75.3%)
CIE-LAB	lab(14.48, 4.41, -18.83)
CIE-LCH	lch(14.48, 19.34, 283.19°)
OKLab	oklab(26.42% -0.0048 -0.0533)
OKLCH	oklch(26.42% 0.054 264.9)
XYZ	xyz(1.9045, 1.8147, 4.9516)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18243F #3F3318

analogous

#18383F #18243F #1F183F

triadic

#18243F #3F1824 #243F18

tetradic

#18243F #3F1838 #3F3318 #183F1F

square

#18243F #3F1838 #3F3318 #183F1F

split-complementary

#18243F #3F1F18 #383F18

monochromatic

#080D16 #080D16 #18243F #293D6B #3A5798

Accessibility & contrast

On white

15.41

#18243F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#18243F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18243F

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18243F	#FFFFFF	#000000	##FFFFFF
##18243F	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192740

Deuteranopia (green-blind)

#14233E

Tritanopia (blue-blind)

#042A2E

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #18243f;
/* rgb */ color: rgb(24, 36, 63);
/* oklch */ color: oklch(26.4% 0.053 264.9);

Tailwind

colors: {
  custom: {
    50: '#585e74',
    500: '#18243f',
    950: '#000000',
  },
}

SCSS

$custom: #18243f;
$custom-light: #585e74;
$custom-dark: #000000;

JSON

{
  "hex": "#18243f",
  "rgb": {
    "r": 24,
    "g": 36,
    "b": 63
  },
  "hsl": {
    "h": 221.538,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.26425,
    "c": 0.0535,
    "h": 264.9
  },
  "luminance": 0.01815
}

Semantic roles & 50–950 ramp

primary

#18243F

secondary

#75643D

accent

#AD53D5

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #18243F

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

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