#05223B#05223B

#05223B is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.6% C 0.059 H 248.4°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#05223B
RGB	rgb(5, 34, 59)
HSL	hsl(208, 84%, 13%)
HSV	hsv(208, 92%, 23%)
CMYK	cmyk(91.5%, 42.4%, 0%, 76.9%)
CIE-LAB	lab(12.56, 0.16, -19.13)
CIE-LCH	lch(12.56, 19.14, 270.49°)
OKLab	oklab(24.57% -0.0216 -0.0545)
OKLCH	oklch(24.57% 0.059 248.4)
XYZ	xyz(1.4237, 1.4919, 4.3498)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05223B #3B1E05

analogous

#053B39 #05223B #05073B

triadic

#05223B #3B0522 #223B05

tetradic

#05223B #39053B #3B1E05 #073B05

square

#05223B #39053B #3B1E05 #073B05

split-complementary

#05223B #3B0507 #3B3905

monochromatic

#02101C #02101C #05223B #0A4373 #0F63AC

Accessibility & contrast

On white

16.17

#05223B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#05223B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05223B

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05223B	#FFFFFF	#000000	##FFFFFF
##05223B	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16233C

Deuteranopia (green-blind)

#0E1E3B

Tritanopia (blue-blind)

#00282B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #05223b;
/* rgb */ color: rgb(5, 34, 59);
/* oklch */ color: oklch(24.6% 0.059 248.4);

Tailwind

colors: {
  custom: {
    50: '#4f5c71',
    500: '#05223b',
    950: '#000000',
  },
}

SCSS

$custom: #05223b;
$custom-light: #4f5c71;
$custom-dark: #000000;

JSON

{
  "hex": "#05223b",
  "rgb": {
    "r": 5,
    "g": 34,
    "b": 59
  },
  "hsl": {
    "h": 207.778,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.24574,
    "c": 0.05866,
    "h": 248.4
  },
  "luminance": 0.01492
}

Semantic roles & 50–950 ramp

primary

#05223B

secondary

#7C4A20

accent

#8C2DFB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #05223B

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

Preview Lab → · Contrast checker → · Palette generator →