#05181D#05181D

#05181D is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 19.5% C 0.027 H 217.0°. Best body text is #FFFFFF at 18.18:1 contrast (WCAG AA passes).

Color values

HEX	#05181D
RGB	rgb(5, 24, 29)
HSL	hsl(193, 71%, 7%)
HSV	hsv(193, 83%, 11%)
CMYK	cmyk(82.8%, 17.2%, 0%, 88.6%)
CIE-LAB	lab(6.99, -5.12, -5.83)
CIE-LCH	lch(6.99, 7.75, 228.69°)
OKLab	oklab(19.55% -0.0218 -0.0164)
OKLCH	oklch(19.55% 0.027 217)
XYZ	xyz(0.6109, 0.7742, 1.2794)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05181D #1D0A05

analogous

#051D16 #05181D #050C1D

triadic

#05181D #1D0518 #181D05

tetradic

#05181D #16051D #1D0A05 #0C1D05

square

#05181D #16051D #1D0A05 #0C1D05

split-complementary

#05181D #1D050C #1D1605

monochromatic

#05161A #05161A #05181D #0E4351 #176E85

Accessibility & contrast

On white

18.18

#05181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#05181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05181D

18.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05181D	#FFFFFF	#000000	##FFFFFF
##05181D	1.00	18.18	1.15	18.18
#FFFFFF	18.18	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15171D

Deuteranopia (green-blind)

#11141D

Tritanopia (blue-blind)

#001A1A

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #05181d;
/* rgb */ color: rgb(5, 24, 29);
/* oklch */ color: oklch(19.5% 0.027 217.0);

Tailwind

colors: {
  custom: {
    50: '#485458',
    500: '#05181d',
    950: '#000000',
  },
}

SCSS

$custom: #05181d;
$custom-light: #485458;
$custom-dark: #000000;

JSON

{
  "hex": "#05181d",
  "rgb": {
    "r": 5,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 192.5,
    "s": 70.588,
    "l": 6.667
  },
  "oklch": {
    "l": 0.19547,
    "c": 0.02729,
    "h": 217
  },
  "luminance": 0.00774
}

Semantic roles & 50–950 ramp

primary

#05181D

secondary

#5E2D20

accent

#603AED

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000203

muted

#777878

Preview Lab

Preview with #05181D

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

Preview Lab → · Contrast checker → · Palette generator →