#181A7A#181A7A

#181A7A is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.156 H 271.2°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#181A7A
RGB	rgb(24, 26, 122)
HSL	hsl(239, 67%, 29%)
HSV	hsv(239, 80%, 48%)
CMYK	cmyk(80.3%, 78.7%, 0%, 52.2%)
CIE-LAB	lab(17.17, 34.61, -53.86)
CIE-LCH	lch(17.17, 64.02, 302.73°)
OKLab	oklab(30.07% 0.0033 -0.1559)
OKLCH	oklch(30.07% 0.156 271.2)
XYZ	xyz(4.2577, 2.3377, 18.6354)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A7A #7A7818

analogous

#184B7A #181A7A #47187A

triadic

#181A7A #7A181A #1A7A18

tetradic

#181A7A #7A184B #7A7818 #187A47

square

#181A7A #7A184B #7A7818 #187A47

split-complementary

#181A7A #7A4718 #4B7A18

monochromatic

#05051A #0E0F47 #181A7A #2225AD #3538D7

Accessibility & contrast

On white

14.31

#181A7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#181A7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A7A

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A7A	#FFFFFF	#000000	##FFFFFF
##181A7A	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7D

Deuteranopia (green-blind)

#002578

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181a7a;
/* rgb */ color: rgb(24, 26, 122);
/* oklch */ color: oklch(30.1% 0.156 271.2);

Tailwind

colors: {
  custom: {
    50: '#6858a2',
    500: '#181a7a',
    950: '#000000',
  },
}

SCSS

$custom: #181a7a;
$custom-light: #6858a2;
$custom-dark: #000000;

JSON

{
  "hex": "#181a7a",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 122
  },
  "hsl": {
    "h": 238.776,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30066,
    "c": 0.15598,
    "h": 271.2
  },
  "luminance": 0.02338
}

Semantic roles & 50–950 ramp

primary

#181A7A

secondary

#AFAC3F

accent

#E73EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181A7A

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

Preview Lab → · Contrast checker → · Palette generator →