#183E86#183E86

#183E86 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.2% C 0.129 H 261.6°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#183E86
RGB	rgb(24, 62, 134)
HSL	hsl(219, 70%, 31%)
HSV	hsv(219, 82%, 53%)
CMYK	cmyk(82.1%, 53.7%, 0%, 47.5%)
CIE-LAB	lab(27.74, 14.90, -44.13)
CIE-LCH	lch(27.74, 46.58, 288.66°)
OKLab	oklab(38.21% -0.0187 -0.1272)
OKLCH	oklch(38.21% 0.129 261.6)
XYZ	xyz(6.4008, 5.3599, 23.2468)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E86 #866018

analogous

#187586 #183E86 #291886

triadic

#183E86 #86183E #3E8618

tetradic

#183E86 #861875 #866018 #188629

square

#183E86 #861875 #866018 #188629

split-complementary

#183E86 #862918 #758618

monochromatic

#050E1E #0F2652 #183E86 #2156BA #3C73DC

Accessibility & contrast

On white

10.13

#183E86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#183E86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E86

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E86	#FFFFFF	#000000	##FFFFFF
##183E86	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4789

Deuteranopia (green-blind)

#003D85

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #183e86;
/* rgb */ color: rgb(24, 62, 134);
/* oklch */ color: oklch(38.2% 0.129 261.6);

Tailwind

colors: {
  custom: {
    50: '#6872aa',
    500: '#183e86',
    950: '#000000',
  },
}

SCSS

$custom: #183e86;
$custom-light: #6872aa;
$custom-dark: #000000;

JSON

{
  "hex": "#183e86",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 134
  },
  "hsl": {
    "h": 219.273,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3821,
    "c": 0.12853,
    "h": 261.6
  },
  "luminance": 0.05361
}

Semantic roles & 50–950 ramp

primary

#183E86

secondary

#BA9040

accent

#AF3BEC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183E86

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

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