#181D7A#181D7A

#181D7A is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.5% C 0.153 H 270.8°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#181D7A
RGB	rgb(24, 29, 122)
HSL	hsl(237, 67%, 29%)
HSV	hsv(237, 80%, 48%)
CMYK	cmyk(80.3%, 76.2%, 0%, 52.2%)
CIE-LAB	lab(17.82, 32.78, -52.78)
CIE-LCH	lch(17.82, 62.13, 301.84°)
OKLab	oklab(30.53% 0.002 -0.1529)
OKLCH	oklch(30.53% 0.153 270.8)
XYZ	xyz(4.3277, 2.4776, 18.6587)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D7A #7A7518

analogous

#184E7A #181D7A #44187A

triadic

#181D7A #7A181D #1D7A18

tetradic

#181D7A #7A184E #7A7518 #187A44

square

#181D7A #7A184E #7A7518 #187A44

split-complementary

#181D7A #7A4418 #4E7A18

monochromatic

#05061A #0E1147 #181D7A #2229AD #353DD7

Accessibility & contrast

On white

14.04

#181D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#181D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D7A

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D7A	#FFFFFF	#000000	##FFFFFF
##181D7A	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307D

Deuteranopia (green-blind)

#002778

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181d7a;
/* rgb */ color: rgb(24, 29, 122);
/* oklch */ color: oklch(30.5% 0.153 270.8);

Tailwind

colors: {
  custom: {
    50: '#685aa2',
    500: '#181d7a',
    950: '#000000',
  },
}

SCSS

$custom: #181d7a;
$custom-light: #685aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#181d7a",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 122
  },
  "hsl": {
    "h": 236.939,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30527,
    "c": 0.15286,
    "h": 270.8
  },
  "luminance": 0.02478
}

Semantic roles & 50–950 ramp

primary

#181D7A

secondary

#AFA93F

accent

#E13EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #181D7A

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

Preview Lab → · Contrast checker → · Palette generator →