#05212B#05212B

#05212B is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.2% C 0.038 H 225.4°. Best body text is #FFFFFF at 16.68:1 contrast (WCAG AA passes).

Color values

HEX	#05212B
RGB	rgb(5, 33, 43)
HSL	hsl(196, 79%, 9%)
HSV	hsv(196, 88%, 17%)
CMYK	cmyk(88.4%, 23.3%, 0%, 83.1%)
CIE-LAB	lab(11.24, -6.31, -9.73)
CIE-LCH	lch(11.24, 11.60, 237.05°)
OKLab	oklab(23.22% -0.0269 -0.0273)
OKLCH	oklch(23.22% 0.038 225.4)
XYZ	xyz(1.0423, 1.2943, 2.4799)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05212B #2B0F05

analogous

#052B22 #05212B #050E2B

triadic

#05212B #2B0521 #212B05

tetradic

#05212B #22052B #2B0F05 #0E2B05

square

#05212B #22052B #2B0F05 #0E2B05

split-complementary

#05212B #2B050E #2B2205

monochromatic

#03151B #03151B #05212B #0B4B62 #127599

Accessibility & contrast

On white

16.68

#05212B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#05212B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05212B

16.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05212B	#FFFFFF	#000000	##FFFFFF
##05212B	1.00	16.68	1.26	16.68
#FFFFFF	16.68	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C202C

Deuteranopia (green-blind)

#161C2B

Tritanopia (blue-blind)

#002424

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #05212b;
/* rgb */ color: rgb(5, 33, 43);
/* oklch */ color: oklch(23.2% 0.038 225.4);

Tailwind

colors: {
  custom: {
    50: '#4b5c64',
    500: '#05212b',
    950: '#000000',
  },
}

SCSS

$custom: #05212b;
$custom-light: #4b5c64;
$custom-dark: #000000;

JSON

{
  "hex": "#05212b",
  "rgb": {
    "r": 5,
    "g": 33,
    "b": 43
  },
  "hsl": {
    "h": 195.789,
    "s": 79.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.23216,
    "c": 0.03829,
    "h": 225.4
  },
  "luminance": 0.01294
}

Semantic roles & 50–950 ramp

primary

#05212B

secondary

#6D341F

accent

#6632F6

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010405

muted

#777979

Preview Lab

Preview with #05212B

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

Preview Lab → · Contrast checker → · Palette generator →