#181A8D#181A8D

#181A8D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.3% C 0.180 H 269.8°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#181A8D
RGB	rgb(24, 26, 141)
HSL	hsl(239, 71%, 32%)
HSV	hsv(239, 83%, 55%)
CMYK	cmyk(83%, 81.6%, 0%, 44.7%)
CIE-LAB	lab(19.46, 41.18, -62.07)
CIE-LCH	lch(19.46, 74.49, 303.56°)
OKLab	oklab(32.34% -0.0005 -0.1798)
OKLCH	oklch(32.34% 0.18 269.8)
XYZ	xyz(5.5522, 2.8554, 25.4527)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A8D #8D8B18

analogous

#18558D #181A8D #50188D

triadic

#181A8D #8D181A #1A8D18

tetradic

#181A8D #8D1855 #8D8B18 #188D50

square

#181A8D #8D1855 #8D8B18 #188D50

split-complementary

#181A8D #8D5018 #558D18

monochromatic

#060724 #0F1059 #181A8D #2124C1 #4143DF

Accessibility & contrast

On white

13.37

#181A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#181A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A8D

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A8D	#FFFFFF	#000000	##FFFFFF
##181A8D	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003590

Deuteranopia (green-blind)

#00298B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #181a8d;
/* rgb */ color: rgb(24, 26, 141);
/* oklch */ color: oklch(32.3% 0.180 269.8);

Tailwind

colors: {
  custom: {
    50: '#6d59b0',
    500: '#181a8d',
    950: '#000000',
  },
}

SCSS

$custom: #181a8d;
$custom-light: #6d59b0;
$custom-dark: #000000;

JSON

{
  "hex": "#181a8d",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 141
  },
  "hsl": {
    "h": 238.974,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3234,
    "c": 0.17976,
    "h": 269.8
  },
  "luminance": 0.02856
}

Semantic roles & 50–950 ramp

primary

#181A8D

secondary

#BFBD42

accent

#EB3AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181A8D

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

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