#181959#181959

#181959 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.2% C 0.112 H 274.8°. Best body text is #FFFFFF at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#181959
RGB	rgb(24, 25, 89)
HSL	hsl(239, 58%, 22%)
HSV	hsv(239, 73%, 35%)
CMYK	cmyk(73%, 71.9%, 0%, 65.1%)
CIE-LAB	lab(13.29, 22.96, -38.59)
CIE-LCH	lch(13.29, 44.91, 300.75°)
OKLab	oklab(26.2% 0.0094 -0.1114)
OKLCH	oklch(26.2% 0.112 274.8)
XYZ	xyz(2.5269, 1.6105, 9.6269)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181959 #595818

analogous

#183A59 #181959 #381859

triadic

#181959 #591819 #195918

tetradic

#181959 #59183A #595818 #185938

square

#181959 #59183A #595818 #185938

split-complementary

#181959 #593818 #3A5918

monochromatic

#060718 #0B0B29 #181959 #252789 #3234B9

Accessibility & contrast

On white

15.88

#181959 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#181959 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181959

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181959	#FFFFFF	#000000	##FFFFFF
##181959	1.00	15.88	1.32	15.88
#FFFFFF	15.88	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255B

Deuteranopia (green-blind)

#001F58

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #181959;
/* rgb */ color: rgb(24, 25, 89);
/* oklch */ color: oklch(26.2% 0.112 274.8);

Tailwind

colors: {
  custom: {
    50: '#5f5689',
    500: '#181959',
    950: '#000000',
  },
}

SCSS

$custom: #181959;
$custom-light: #5f5689;
$custom-dark: #000000;

JSON

{
  "hex": "#181959",
  "rgb": {
    "r": 24,
    "g": 25,
    "b": 89
  },
  "hsl": {
    "h": 239.077,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26203,
    "c": 0.11182,
    "h": 274.8
  },
  "luminance": 0.01611
}

Semantic roles & 50–950 ramp

primary

#181959

secondary

#908E3D

accent

#DE47E1

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #181959

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

Preview Lab → · Contrast checker → · Palette generator →