#181A7D#181A7D

#181A7D is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.160 H 271.0°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#181A7D
RGB	rgb(24, 26, 125)
HSL	hsl(239, 68%, 29%)
HSV	hsv(239, 81%, 49%)
CMYK	cmyk(80.8%, 79.2%, 0%, 51%)
CIE-LAB	lab(17.52, 35.67, -55.19)
CIE-LCH	lch(17.52, 65.71, 302.88°)
OKLab	oklab(30.42% 0.0027 -0.1598)
OKLCH	oklch(30.42% 0.16 271)
XYZ	xyz(4.4465, 2.4132, 19.6295)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A7D #7D7B18

analogous

#184D7D #181A7D #49187D

triadic

#181A7D #7D181A #1A7D18

tetradic

#181A7D #7D184D #7D7B18 #187D49

square

#181A7D #7D184D #7D7B18 #187D49

split-complementary

#181A7D #7D4918 #4D7D18

monochromatic

#05051A #0E0F4A #181A7D #2225B0 #373AD9

Accessibility & contrast

On white

14.16

#181A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#181A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A7D

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A7D	#FFFFFF	#000000	##FFFFFF
##181A7D	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003080

Deuteranopia (green-blind)

#00267B

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181a7d;
/* rgb */ color: rgb(24, 26, 125);
/* oklch */ color: oklch(30.4% 0.160 271.0);

Tailwind

colors: {
  custom: {
    50: '#6958a4',
    500: '#181a7d',
    950: '#000000',
  },
}

SCSS

$custom: #181a7d;
$custom-light: #6958a4;
$custom-dark: #000000;

JSON

{
  "hex": "#181a7d",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 125
  },
  "hsl": {
    "h": 238.812,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30419,
    "c": 0.15982,
    "h": 271
  },
  "luminance": 0.02414
}

Semantic roles & 50–950 ramp

primary

#181A7D

secondary

#B2AF3F

accent

#E73DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181A7D

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

Preview Lab → · Contrast checker → · Palette generator →