#181A8C#181A8C

#181A8C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.179 H 269.9°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#181A8C
RGB	rgb(24, 26, 140)
HSL	hsl(239, 71%, 32%)
HSV	hsv(239, 83%, 55%)
CMYK	cmyk(82.9%, 81.4%, 0%, 45.1%)
CIE-LAB	lab(19.33, 40.84, -61.65)
CIE-LCH	lch(19.33, 73.95, 303.52°)
OKLab	oklab(32.22% -0.0003 -0.1785)
OKLCH	oklch(32.22% 0.179 269.9)
XYZ	xyz(5.4781, 2.8258, 25.0626)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A8C #8C8A18

analogous

#18548C #181A8C #50188C

triadic

#181A8C #8C181A #1A8C18

tetradic

#181A8C #8C1854 #8C8A18 #188C50

square

#181A8C #8C1854 #8C8A18 #188C50

split-complementary

#181A8C #8C5018 #548C18

monochromatic

#060724 #0F1058 #181A8C #2124C0 #4043DE

Accessibility & contrast

On white

13.42

#181A8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#181A8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A8C

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A8C	#FFFFFF	#000000	##FFFFFF
##181A8C	1.00	13.42	1.57	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358F

Deuteranopia (green-blind)

#00298A

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #181a8c;
/* rgb */ color: rgb(24, 26, 140);
/* oklch */ color: oklch(32.2% 0.179 269.9);

Tailwind

colors: {
  custom: {
    50: '#6d59af',
    500: '#181a8c',
    950: '#000000',
  },
}

SCSS

$custom: #181a8c;
$custom-light: #6d59af;
$custom-dark: #000000;

JSON

{
  "hex": "#181a8c",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 140
  },
  "hsl": {
    "h": 238.966,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32219,
    "c": 0.17854,
    "h": 269.9
  },
  "luminance": 0.02826
}

Semantic roles & 50–950 ramp

primary

#181A8C

secondary

#BFBD41

accent

#EA3AED

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080411

muted

#7B7980

Preview Lab

Preview with #181A8C

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

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