#18204E#18204E

#18204E is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.6% C 0.085 H 272.0°. Best body text is #FFFFFF at 15.49:1 contrast (WCAG AA passes).

Color values

HEX	#18204E
RGB	rgb(24, 32, 78)
HSL	hsl(231, 53%, 20%)
HSV	hsv(231, 69%, 31%)
CMYK	cmyk(69.2%, 59%, 0%, 69.4%)
CIE-LAB	lab(14.27, 13.47, -29.54)
CIE-LCH	lch(14.27, 32.46, 294.51°)
OKLab	oklab(26.61% 0.0029 -0.0848)
OKLCH	oklch(26.61% 0.085 272)
XYZ	xyz(2.2679, 1.7771, 7.4297)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18204E #4E4618

analogous

#183B4E #18204E #2B184E

triadic

#18204E #4E1820 #204E18

tetradic

#18204E #4E183B #4E4618 #184E2B

square

#18204E #4E183B #4E4618 #184E2B

split-complementary

#18204E #4E2B18 #3B4E18

monochromatic

#070A17 #0A0D1F #18204E #26337D #3546AC

Accessibility & contrast

On white

15.49

#18204E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#18204E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18204E

15.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18204E	#FFFFFF	#000000	##FFFFFF
##18204E	1.00	15.49	1.36	15.49
#FFFFFF	15.49	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032750

Deuteranopia (green-blind)

#00224D

Tritanopia (blue-blind)

#002B33

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #18204e;
/* rgb */ color: rgb(24, 32, 78);
/* oklch */ color: oklch(26.6% 0.085 272.0);

Tailwind

colors: {
  custom: {
    50: '#5c5b80',
    500: '#18204e',
    950: '#000000',
  },
}

SCSS

$custom: #18204e;
$custom-light: #5c5b80;
$custom-dark: #000000;

JSON

{
  "hex": "#18204e",
  "rgb": {
    "r": 24,
    "g": 32,
    "b": 78
  },
  "hsl": {
    "h": 231.111,
    "s": 52.941,
    "l": 20
  },
  "oklch": {
    "l": 0.26611,
    "c": 0.08482,
    "h": 272
  },
  "luminance": 0.01777
}

Semantic roles & 50–950 ramp

primary

#18204E

secondary

#857A3D

accent

#C74BDC

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04040A

muted

#79797C

Preview Lab

Preview with #18204E

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

Preview Lab → · Contrast checker → · Palette generator →