#05172A#05172A

#05172A is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.1% C 0.045 H 251.1°. Best body text is #FFFFFF at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#05172A
RGB	rgb(5, 23, 42)
HSL	hsl(211, 79%, 9%)
HSV	hsv(211, 88%, 16%)
CMYK	cmyk(88.1%, 45.2%, 0%, 83.5%)
CIE-LAB	lab(7.34, 0.61, -15.10)
CIE-LCH	lch(7.34, 15.11, 272.30°)
OKLab	oklab(20.09% -0.0147 -0.043)
OKLCH	oklch(20.09% 0.045 251.1)
XYZ	xyz(0.7867, 0.8121, 2.3053)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05172A #2A1805

analogous

#052A2A #05172A #06052A

triadic

#05172A #2A0517 #172A05

tetradic

#05172A #2A052A #2A1805 #052A06

square

#05172A #2A052A #2A1805 #052A06

split-complementary

#05172A #2A0605 #2A2A05

monochromatic

#030F1B #030F1B #05172A #0C3561 #125397

Accessibility & contrast

On white

18.07

#05172A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#05172A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05172A

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05172A	#FFFFFF	#000000	##FFFFFF
##05172A	1.00	18.07	1.16	18.07
#FFFFFF	18.07	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E182B

Deuteranopia (green-blind)

#09152A

Tritanopia (blue-blind)

#001B1E

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #05172a;
/* rgb */ color: rgb(5, 23, 42);
/* oklch */ color: oklch(20.1% 0.045 251.1);

Tailwind

colors: {
  custom: {
    50: '#4a5363',
    500: '#05172a',
    950: '#000000',
  },
}

SCSS

$custom: #05172a;
$custom-light: #4a5363;
$custom-dark: #000000;

JSON

{
  "hex": "#05172a",
  "rgb": {
    "r": 5,
    "g": 23,
    "b": 42
  },
  "hsl": {
    "h": 210.811,
    "s": 78.723,
    "l": 9.216
  },
  "oklch": {
    "l": 0.2009,
    "c": 0.04548,
    "h": 251.1
  },
  "luminance": 0.00812
}

Semantic roles & 50–950 ramp

primary

#05172A

secondary

#6C461F

accent

#9733F5

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010205

muted

#777879

Preview Lab

Preview with #05172A

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

Preview Lab → · Contrast checker → · Palette generator →