#181870#181870

#181870 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.145 H 272.4°. Best body text is #FFFFFF at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#181870
RGB	rgb(24, 24, 112)
HSL	hsl(240, 65%, 27%)
HSV	hsv(240, 79%, 44%)
CMYK	cmyk(78.6%, 78.6%, 0%, 56.1%)
CIE-LAB	lab(15.58, 32.23, -50.04)
CIE-LCH	lch(15.58, 59.52, 302.79°)
OKLab	oklab(28.6% 0.0061 -0.1448)
OKLCH	oklch(28.6% 0.145 272.4)
XYZ	xyz(3.6270, 2.0169, 15.5242)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181870 #707018

analogous

#184470 #181870 #441870

triadic

#181870 #701818 #187018

tetradic

#181870 #701844 #707018 #187044

square

#181870 #701844 #707018 #187044

split-complementary

#181870 #704418 #447018

monochromatic

#050519 #0D0D3E #181870 #2323A2 #3030D3

Accessibility & contrast

On white

14.96

#181870 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#181870 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181870

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181870	#FFFFFF	#000000	##FFFFFF
##181870	1.00	14.96	1.40	14.96
#FFFFFF	14.96	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B73

Deuteranopia (green-blind)

#00226E

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181870;
/* rgb */ color: rgb(24, 24, 112);
/* oklch */ color: oklch(28.6% 0.145 272.4);

Tailwind

colors: {
  custom: {
    50: '#66569a',
    500: '#181870',
    950: '#000000',
  },
}

SCSS

$custom: #181870;
$custom-light: #66569a;
$custom-dark: #000000;

JSON

{
  "hex": "#181870",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 112
  },
  "hsl": {
    "h": 240,
    "s": 64.706,
    "l": 26.667
  },
  "oklch": {
    "l": 0.28595,
    "c": 0.14496,
    "h": 272.4
  },
  "luminance": 0.02017
}

Semantic roles & 50–950 ramp

primary

#181870

secondary

#A5A53E

accent

#E840E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181870

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

Preview Lab → · Contrast checker → · Palette generator →