#05172D#05172D

#05172D is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.3% C 0.050 H 254.2°. Best body text is #FFFFFF at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#05172D
RGB	rgb(5, 23, 45)
HSL	hsl(213, 80%, 10%)
HSV	hsv(213, 89%, 18%)
CMYK	cmyk(88.9%, 48.9%, 0%, 82.4%)
CIE-LAB	lab(7.54, 2.02, -17.00)
CIE-LCH	lch(7.54, 17.12, 276.79°)
OKLab	oklab(20.32% -0.0138 -0.0486)
OKLCH	oklch(20.32% 0.05 254.2)
XYZ	xyz(0.8425, 0.8344, 2.5988)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05172D #2D1B05

analogous

#052B2D #05172D #07052D

triadic

#05172D #2D0517 #172D05

tetradic

#05172D #2D052B #2D1B05 #052D07

square

#05172D #2D052B #2D1B05 #052D07

split-complementary

#05172D #2D0705 #2B2D05

monochromatic

#030E1C #030E1C #05172D #0B3364 #114F9B

Accessibility & contrast

On white

17.99

#05172D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#05172D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05172D

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05172D	#FFFFFF	#000000	##FFFFFF
##05172D	1.00	17.99	1.17	17.99
#FFFFFF	17.99	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D192E

Deuteranopia (green-blind)

#06152D

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #05172d;
/* rgb */ color: rgb(5, 23, 45);
/* oklch */ color: oklch(20.3% 0.050 254.2);

Tailwind

colors: {
  custom: {
    50: '#4b5366',
    500: '#05172d',
    950: '#000000',
  },
}

SCSS

$custom: #05172d;
$custom-light: #4b5366;
$custom-dark: #000000;

JSON

{
  "hex": "#05172d",
  "rgb": {
    "r": 5,
    "g": 23,
    "b": 45
  },
  "hsl": {
    "h": 213,
    "s": 80,
    "l": 9.804
  },
  "oklch": {
    "l": 0.20324,
    "c": 0.05049,
    "h": 254.2
  },
  "luminance": 0.00835
}

Semantic roles & 50–950 ramp

primary

#05172D

secondary

#6F4B1F

accent

#9E31F6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #05172D

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

Preview Lab → · Contrast checker → · Palette generator →