#18204D#18204D

#18204D is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.5% C 0.083 H 271.9°. Best body text is #FFFFFF at 15.53:1 contrast (WCAG AA passes).

Color values

HEX	#18204D
RGB	rgb(24, 32, 77)
HSL	hsl(231, 52%, 20%)
HSV	hsv(231, 69%, 30%)
CMYK	cmyk(68.8%, 58.4%, 0%, 69.8%)
CIE-LAB	lab(14.19, 13.06, -28.98)
CIE-LCH	lch(14.19, 31.79, 294.26°)
OKLab	oklab(26.52% 0.0028 -0.0831)
OKLCH	oklch(26.52% 0.083 271.9)
XYZ	xyz(2.2323, 1.7628, 7.2424)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18204D #4D4518

analogous

#183B4D #18204D #2A184D

triadic

#18204D #4D1820 #204D18

tetradic

#18204D #4D183B #4D4518 #184D2A

square

#18204D #4D183B #4D4518 #184D2A

split-complementary

#18204D #4D2A18 #3B4D18

monochromatic

#070A17 #090D1E #18204D #27337C #3547AA

Accessibility & contrast

On white

15.53

#18204D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#18204D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18204D

15.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18204D	#FFFFFF	#000000	##FFFFFF
##18204D	1.00	15.53	1.35	15.53
#FFFFFF	15.53	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05264F

Deuteranopia (green-blind)

#00224C

Tritanopia (blue-blind)

#002B33

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #18204d;
/* rgb */ color: rgb(24, 32, 77);
/* oklch */ color: oklch(26.5% 0.083 271.9);

Tailwind

colors: {
  custom: {
    50: '#5c5b7f',
    500: '#18204d',
    950: '#000000',
  },
}

SCSS

$custom: #18204d;
$custom-light: #5c5b7f;
$custom-dark: #000000;

JSON

{
  "hex": "#18204d",
  "rgb": {
    "r": 24,
    "g": 32,
    "b": 77
  },
  "hsl": {
    "h": 230.943,
    "s": 52.475,
    "l": 19.804
  },
  "oklch": {
    "l": 0.26524,
    "c": 0.08319,
    "h": 271.9
  },
  "luminance": 0.01763
}

Semantic roles & 50–950 ramp

primary

#18204D

secondary

#84793D

accent

#C64CDC

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04040A

muted

#79797C

Preview Lab

Preview with #18204D

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

Preview Lab → · Contrast checker → · Palette generator →