#05152B#05152B

#05152B is a very dark, muted cyan. Relative luminance 0.007; OKLCH L 19.6% C 0.050 H 256.1°. Best body text is #FFFFFF at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#05152B
RGB	rgb(5, 21, 43)
HSL	hsl(215, 79%, 9%)
HSV	hsv(215, 88%, 17%)
CMYK	cmyk(88.4%, 51.2%, 0%, 83.1%)
CIE-LAB	lab(6.71, 2.48, -16.83)
CIE-LCH	lch(6.71, 17.01, 278.38°)
OKLab	oklab(19.58% -0.012 -0.0484)
OKLCH	oklch(19.58% 0.05 256.1)
XYZ	xyz(0.7666, 0.7429, 2.3880)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05152B #2B1B05

analogous

#05282B #05152B #08052B

triadic

#05152B #2B0515 #152B05

tetradic

#05152B #2B0528 #2B1B05 #052B08

square

#05152B #2B0528 #2B1B05 #052B08

split-complementary

#05152B #2B0805 #282B05

monochromatic

#030D1B #030D1B #05152B #0B3062 #124B99

Accessibility & contrast

On white

18.28

#05152B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#05152B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05152B

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05152B	#FFFFFF	#000000	##FFFFFF
##05152B	1.00	18.28	1.15	18.28
#FFFFFF	18.28	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A172C

Deuteranopia (green-blind)

#05132B

Tritanopia (blue-blind)

#001A1D

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #05152b;
/* rgb */ color: rgb(5, 21, 43);
/* oklch */ color: oklch(19.6% 0.050 256.1);

Tailwind

colors: {
  custom: {
    50: '#4a5264',
    500: '#05152b',
    950: '#000000',
  },
}

SCSS

$custom: #05152b;
$custom-light: #4a5264;
$custom-dark: #000000;

JSON

{
  "hex": "#05152b",
  "rgb": {
    "r": 5,
    "g": 21,
    "b": 43
  },
  "hsl": {
    "h": 214.737,
    "s": 79.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.19581,
    "c": 0.04991,
    "h": 256.1
  },
  "luminance": 0.00743
}

Semantic roles & 50–950 ramp

primary

#05152B

secondary

#6D4C1F

accent

#A332F6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #05152B

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

Preview Lab → · Contrast checker → · Palette generator →