#18273E#18273E

#18273E is a dark, muted blue. Relative luminance 0.020; OKLCH L 27.2% C 0.048 H 258.7°. Best body text is #FFFFFF at 15.02:1 contrast (WCAG AA passes).

Color values

HEX	#18273E
RGB	rgb(24, 39, 62)
HSL	hsl(216, 44%, 17%)
HSV	hsv(216, 61%, 24%)
CMYK	cmyk(61.3%, 37.1%, 0%, 75.7%)
CIE-LAB	lab(15.45, 1.82, -16.61)
CIE-LCH	lch(15.45, 16.71, 276.24°)
OKLab	oklab(27.16% -0.0094 -0.0468)
OKLCH	oklch(27.16% 0.048 258.7)
XYZ	xyz(1.9714, 1.9929, 4.8373)
Luminance	0.0199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18273E #3E2F18

analogous

#183A3E #18273E #1C183E

triadic

#18273E #3E1827 #273E18

tetradic

#18273E #3E183A #3E2F18 #183E1C

square

#18273E #3E183A #3E2F18 #183E1C

split-complementary

#18273E #3E1C18 #3A3E18

monochromatic

#090E16 #090E16 #18273E #29436A #3A5F96

Accessibility & contrast

On white

15.02

#18273E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#18273E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18273E

15.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18273E	#FFFFFF	#000000	##FFFFFF
##18273E	1.00	15.02	1.40	15.02
#FFFFFF	15.02	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E293F

Deuteranopia (green-blind)

#19253E

Tritanopia (blue-blind)

#042C2F

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #18273e;
/* rgb */ color: rgb(24, 39, 62);
/* oklch */ color: oklch(27.2% 0.048 258.7);

Tailwind

colors: {
  custom: {
    50: '#586073',
    500: '#18273e',
    950: '#000000',
  },
}

SCSS

$custom: #18273e;
$custom-light: #586073;
$custom-dark: #000000;

JSON

{
  "hex": "#18273e",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 62
  },
  "hsl": {
    "h": 216.316,
    "s": 44.186,
    "l": 16.863
  },
  "oklch": {
    "l": 0.27156,
    "c": 0.04772,
    "h": 258.7
  },
  "luminance": 0.01993
}

Semantic roles & 50–950 ramp

primary

#18273E

secondary

#745F3D

accent

#A154D4

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030508

muted

#78797B

Preview Lab

Preview with #18273E

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

Preview Lab → · Contrast checker → · Palette generator →