#181D6D#181D6D

#181D6D is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.1% C 0.135 H 271.7°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#181D6D
RGB	rgb(24, 29, 109)
HSL	hsl(236, 64%, 26%)
HSV	hsv(236, 78%, 43%)
CMYK	cmyk(78%, 73.4%, 0%, 57.3%)
CIE-LAB	lab(16.39, 27.93, -46.75)
CIE-LCH	lch(16.39, 54.46, 300.85°)
OKLab	oklab(29.08% 0.004 -0.1353)
OKLCH	oklch(29.08% 0.135 271.7)
XYZ	xyz(3.5754, 2.1767, 14.6967)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D6D #6D6818

analogous

#18476D #181D6D #3D186D

triadic

#181D6D #6D181D #1D6D18

tetradic

#181D6D #6D1847 #6D6818 #186D3D

square

#181D6D #6D1847 #6D6818 #186D3D

split-complementary

#181D6D #6D3D18 #476D18

monochromatic

#060719 #0D103B #181D6D #232A9F #2E38D1

Accessibility & contrast

On white

14.63

#181D6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#181D6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D6D

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D6D	#FFFFFF	#000000	##FFFFFF
##181D6D	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6F

Deuteranopia (green-blind)

#00256C

Tritanopia (blue-blind)

#003342

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181d6d;
/* rgb */ color: rgb(24, 29, 109);
/* oklch */ color: oklch(29.1% 0.135 271.7);

Tailwind

colors: {
  custom: {
    50: '#645998',
    500: '#181d6d',
    950: '#000000',
  },
}

SCSS

$custom: #181d6d;
$custom-light: #645998;
$custom-dark: #000000;

JSON

{
  "hex": "#181d6d",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 109
  },
  "hsl": {
    "h": 236.471,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29075,
    "c": 0.13533,
    "h": 271.7
  },
  "luminance": 0.02177
}

Semantic roles & 50–950 ramp

primary

#181D6D

secondary

#A39D3E

accent

#DD41E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #181D6D

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

Preview Lab → · Contrast checker → · Palette generator →