#181859#181859

#181859 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.113 H 275.2°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#181859
RGB	rgb(24, 24, 89)
HSL	hsl(240, 58%, 22%)
HSV	hsv(240, 73%, 35%)
CMYK	cmyk(73%, 73%, 0%, 65.1%)
CIE-LAB	lab(13.04, 23.65, -39.01)
CIE-LCH	lch(13.04, 45.62, 301.23°)
OKLab	oklab(26.02% 0.0102 -0.1127)
OKLCH	oklch(26.02% 0.113 275.2)
XYZ	xyz(2.5059, 1.5685, 9.6199)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181859 #595918

analogous

#183959 #181859 #391859

triadic

#181859 #591818 #185918

tetradic

#181859 #591839 #595918 #185939

square

#181859 #591839 #595918 #185939

split-complementary

#181859 #593918 #395918

monochromatic

#060618 #0B0B29 #181859 #252589 #3232B9

Accessibility & contrast

On white

15.98

#181859 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#181859 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181859

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181859	#FFFFFF	#000000	##FFFFFF
##181859	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255B

Deuteranopia (green-blind)

#001F58

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #181859;
/* rgb */ color: rgb(24, 24, 89);
/* oklch */ color: oklch(26.0% 0.113 275.2);

Tailwind

colors: {
  custom: {
    50: '#5f5589',
    500: '#181859',
    950: '#000000',
  },
}

SCSS

$custom: #181859;
$custom-light: #5f5589;
$custom-dark: #000000;

JSON

{
  "hex": "#181859",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 89
  },
  "hsl": {
    "h": 240,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26017,
    "c": 0.11313,
    "h": 275.2
  },
  "luminance": 0.01569
}

Semantic roles & 50–950 ramp

primary

#181859

secondary

#90903D

accent

#E147E1

background

#F5F4F8

surface

#EAE8F0

border

#C6C4CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #181859

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

Preview Lab → · Contrast checker → · Palette generator →