#183889#183889

#183889 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.141 H 264.2°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#183889
RGB	rgb(24, 56, 137)
HSL	hsl(223, 70%, 32%)
HSV	hsv(223, 82%, 54%)
CMYK	cmyk(82.5%, 59.1%, 0%, 46.3%)
CIE-LAB	lab(26.24, 20.34, -48.43)
CIE-LCH	lch(26.24, 52.52, 292.78°)
OKLab	oklab(37.15% -0.0141 -0.1399)
OKLCH	oklch(37.15% 0.141 264.2)
XYZ	xyz(6.3046, 4.8279, 24.2617)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183889 #896918

analogous

#187189 #183889 #311889

triadic

#183889 #891838 #388918

tetradic

#183889 #891871 #896918 #188931

square

#183889 #891871 #896918 #188931

split-complementary

#183889 #893118 #718918

monochromatic

#060D21 #0F2355 #183889 #214DBD #3E6BDD

Accessibility & contrast

On white

10.68

#183889 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#183889 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183889

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183889	#FFFFFF	#000000	##FFFFFF
##183889	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003987

Tritanopia (blue-blind)

#004C5A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #183889;
/* rgb */ color: rgb(24, 56, 137);
/* oklch */ color: oklch(37.2% 0.141 264.2);

Tailwind

colors: {
  custom: {
    50: '#696eac',
    500: '#183889',
    950: '#000000',
  },
}

SCSS

$custom: #183889;
$custom-light: #696eac;
$custom-dark: #000000;

JSON

{
  "hex": "#183889",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 137
  },
  "hsl": {
    "h": 223.009,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37153,
    "c": 0.14061,
    "h": 264.2
  },
  "luminance": 0.04829
}

Semantic roles & 50–950 ramp

primary

#183889

secondary

#BD9940

accent

#BB3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183889

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

Preview Lab → · Contrast checker → · Palette generator →