#183989#183989

#183989 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.139 H 263.9°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#183989
RGB	rgb(24, 57, 137)
HSL	hsl(222, 70%, 32%)
HSV	hsv(222, 82%, 54%)
CMYK	cmyk(82.5%, 58.4%, 0%, 46.3%)
CIE-LAB	lab(26.52, 19.64, -47.96)
CIE-LCH	lch(26.52, 51.83, 292.26°)
OKLab	oklab(37.37% -0.0148 -0.1385)
OKLCH	oklch(37.37% 0.139 263.9)
XYZ	xyz(6.3536, 4.9258, 24.2780)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183989 #896818

analogous

#187289 #183989 #301889

triadic

#183989 #891839 #398918

tetradic

#183989 #891872 #896818 #188930

square

#183989 #891872 #896818 #188930

split-complementary

#183989 #893018 #728918

monochromatic

#060E21 #0F2355 #183989 #214FBD #3E6DDD

Accessibility & contrast

On white

10.58

#183989 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#183989 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183989

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183989	#FFFFFF	#000000	##FFFFFF
##183989	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #183989;
/* rgb */ color: rgb(24, 57, 137);
/* oklch */ color: oklch(37.4% 0.139 263.9);

Tailwind

colors: {
  custom: {
    50: '#696eac',
    500: '#183989',
    950: '#000000',
  },
}

SCSS

$custom: #183989;
$custom-light: #696eac;
$custom-dark: #000000;

JSON

{
  "hex": "#183989",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 137
  },
  "hsl": {
    "h": 222.478,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37366,
    "c": 0.13932,
    "h": 263.9
  },
  "luminance": 0.04927
}

Semantic roles & 50–950 ramp

primary

#183989

secondary

#BD9840

accent

#B93BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183989

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

Preview Lab → · Contrast checker → · Palette generator →