#181C86#181C86

#181C86 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.169 H 270.1°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#181C86
RGB	rgb(24, 28, 134)
HSL	hsl(238, 70%, 31%)
HSV	hsv(238, 82%, 53%)
CMYK	cmyk(82.1%, 79.1%, 0%, 47.5%)
CIE-LAB	lab(18.99, 37.67, -58.45)
CIE-LCH	lch(18.99, 69.54, 302.80°)
OKLab	oklab(31.77% 0.0003 -0.1693)
OKLCH	oklch(31.77% 0.169 270.1)
XYZ	xyz(5.0936, 2.7453, 22.8111)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C86 #868218

analogous

#185386 #181C86 #4B1886

triadic

#181C86 #86181C #1C8618

tetradic

#181C86 #861853 #868218 #18864B

square

#181C86 #861853 #868218 #18864B

split-complementary

#181C86 #864B18 #538618

monochromatic

#05061E #0F1152 #181C86 #2127BA #3C42DC

Accessibility & contrast

On white

13.56

#181C86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#181C86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C86

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C86	#FFFFFF	#000000	##FFFFFF
##181C86	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003489

Deuteranopia (green-blind)

#002884

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #181c86;
/* rgb */ color: rgb(24, 28, 134);
/* oklch */ color: oklch(31.8% 0.169 270.1);

Tailwind

colors: {
  custom: {
    50: '#6b5aaa',
    500: '#181c86',
    950: '#000000',
  },
}

SCSS

$custom: #181c86;
$custom-light: #6b5aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#181c86",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 134
  },
  "hsl": {
    "h": 237.818,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3177,
    "c": 0.16929,
    "h": 270.1
  },
  "luminance": 0.02746
}

Semantic roles & 50–950 ramp

primary

#181C86

secondary

#BAB540

accent

#E63BEC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #181C86

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

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