#05172C#05172C

#05172C is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.2% C 0.049 H 253.3°. Best body text is #FFFFFF at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#05172C
RGB	rgb(5, 23, 44)
HSL	hsl(212, 80%, 10%)
HSV	hsv(212, 89%, 17%)
CMYK	cmyk(88.6%, 47.7%, 0%, 82.7%)
CIE-LAB	lab(7.47, 1.54, -16.37)
CIE-LCH	lch(7.47, 16.44, 275.37°)
OKLab	oklab(20.24% -0.0141 -0.0467)
OKLCH	oklch(20.24% 0.049 253.3)
XYZ	xyz(0.8234, 0.8268, 2.4986)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05172C #2C1A05

analogous

#052B2C #05172C #07052C

triadic

#05172C #2C0517 #172C05

tetradic

#05172C #2C052B #2C1A05 #052C07

square

#05172C #2C052B #2C1A05 #052C07

split-complementary

#05172C #2C0705 #2B2C05

monochromatic

#030E1B #030E1B #05172C #0B3463 #11509A

Accessibility & contrast

On white

18.02

#05172C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#05172C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05172C

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05172C	#FFFFFF	#000000	##FFFFFF
##05172C	1.00	18.02	1.17	18.02
#FFFFFF	18.02	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D182D

Deuteranopia (green-blind)

#07152C

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #05172c;
/* rgb */ color: rgb(5, 23, 44);
/* oklch */ color: oklch(20.2% 0.049 253.3);

Tailwind

colors: {
  custom: {
    50: '#4a5365',
    500: '#05172c',
    950: '#000000',
  },
}

SCSS

$custom: #05172c;
$custom-light: #4a5365;
$custom-dark: #000000;

JSON

{
  "hex": "#05172c",
  "rgb": {
    "r": 5,
    "g": 23,
    "b": 44
  },
  "hsl": {
    "h": 212.308,
    "s": 79.592,
    "l": 9.608
  },
  "oklch": {
    "l": 0.20245,
    "c": 0.04881,
    "h": 253.3
  },
  "luminance": 0.00827
}

Semantic roles & 50–950 ramp

primary

#05172C

secondary

#6E491F

accent

#9B32F6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #05172C

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

Preview Lab → · Contrast checker → · Palette generator →