#18243E#18243E

#18243E is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.4% C 0.052 H 264.4°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#18243E
RGB	rgb(24, 36, 62)
HSL	hsl(221, 44%, 17%)
HSV	hsv(221, 61%, 24%)
CMYK	cmyk(61.3%, 41.9%, 0%, 75.7%)
CIE-LAB	lab(14.42, 4.02, -18.23)
CIE-LCH	lch(14.42, 18.67, 282.43°)
OKLab	oklab(26.36% -0.0051 -0.0515)
OKLCH	oklch(26.36% 0.052 264.4)
XYZ	xyz(1.8768, 1.8036, 4.8057)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18243E #3E3218

analogous

#18373E #18243E #1F183E

triadic

#18243E #3E1824 #243E18

tetradic

#18243E #3E1837 #3E3218 #183E1F

square

#18243E #3E1837 #3E3218 #183E1F

split-complementary

#18243E #3E1F18 #373E18

monochromatic

#090D16 #090D16 #18243E #293E6A #3A5796

Accessibility & contrast

On white

15.43

#18243E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#18243E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18243E

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18243E	#FFFFFF	#000000	##FFFFFF
##18243E	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A263F

Deuteranopia (green-blind)

#15233D

Tritanopia (blue-blind)

#052A2E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #18243e;
/* rgb */ color: rgb(24, 36, 62);
/* oklch */ color: oklch(26.4% 0.052 264.4);

Tailwind

colors: {
  custom: {
    50: '#585e73',
    500: '#18243e',
    950: '#000000',
  },
}

SCSS

$custom: #18243e;
$custom-light: #585e73;
$custom-dark: #000000;

JSON

{
  "hex": "#18243e",
  "rgb": {
    "r": 24,
    "g": 36,
    "b": 62
  },
  "hsl": {
    "h": 221.053,
    "s": 44.186,
    "l": 16.863
  },
  "oklch": {
    "l": 0.26356,
    "c": 0.05178,
    "h": 264.4
  },
  "luminance": 0.01804
}

Semantic roles & 50–950 ramp

primary

#18243E

secondary

#74633D

accent

#AB54D4

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #18243E

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

Preview Lab → · Contrast checker → · Palette generator →