#05182F#05182F

#05182F is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 20.8% C 0.052 H 254.2°. Best body text is #FFFFFF at 17.82:1 contrast (WCAG AA passes).

Color values

HEX	#05182F
RGB	rgb(5, 24, 47)
HSL	hsl(213, 81%, 10%)
HSV	hsv(213, 89%, 18%)
CMYK	cmyk(89.4%, 48.9%, 0%, 81.6%)
CIE-LAB	lab(8.05, 2.22, -17.67)
CIE-LCH	lch(8.05, 17.81, 277.15°)
OKLab	oklab(20.77% -0.0143 -0.0505)
OKLCH	oklch(20.77% 0.052 254.2)
XYZ	xyz(0.9021, 0.8907, 2.8131)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05182F #2F1C05

analogous

#052D2F #05182F #07052F

triadic

#05182F #2F0518 #182F05

tetradic

#05182F #2F052D #2F1C05 #052F07

square

#05182F #2F052D #2F1C05 #052F07

split-complementary

#05182F #2F0705 #2D2F05

monochromatic

#030E1C #030E1C #05182F #0B3466 #11509E

Accessibility & contrast

On white

17.82

#05182F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#05182F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05182F

17.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05182F	#FFFFFF	#000000	##FFFFFF
##05182F	1.00	17.82	1.18	17.82
#FFFFFF	17.82	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1A30

Deuteranopia (green-blind)

#06162F

Tritanopia (blue-blind)

#001D21

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #05182f;
/* rgb */ color: rgb(5, 24, 47);
/* oklch */ color: oklch(20.8% 0.052 254.2);

Tailwind

colors: {
  custom: {
    50: '#4b5467',
    500: '#05182f',
    950: '#000000',
  },
}

SCSS

$custom: #05182f;
$custom-light: #4b5467;
$custom-dark: #000000;

JSON

{
  "hex": "#05182f",
  "rgb": {
    "r": 5,
    "g": 24,
    "b": 47
  },
  "hsl": {
    "h": 212.857,
    "s": 80.769,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20774,
    "c": 0.05246,
    "h": 254.2
  },
  "luminance": 0.00891
}

Semantic roles & 50–950 ramp

primary

#05182F

secondary

#714C1F

accent

#9D31F7

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #05182F

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

Preview Lab → · Contrast checker → · Palette generator →