#21576B#21576B

#21576B is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.0% C 0.065 H 225.9°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#21576B
RGB	rgb(33, 87, 107)
HSL	hsl(196, 53%, 27%)
HSV	hsv(196, 69%, 42%)
CMYK	cmyk(69.2%, 18.7%, 0%, 58%)
CIE-LAB	lab(34.40, -10.80, -16.72)
CIE-LCH	lch(34.40, 19.90, 237.12°)
OKLab	oklab(43% -0.0453 -0.0467)
OKLCH	oklch(43% 0.065 225.9)
XYZ	xyz(6.6882, 8.2005, 15.1375)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21576B #6B3521

analogous

#216B5A #21576B #21326B

triadic

#21576B #6B2157 #576B21

tetradic

#21576B #5A216B #6B3521 #326B21

square

#21576B #5A216B #6B3521 #326B21

split-complementary

#21576B #6B2132 #6B5A21

monochromatic

#071317 #13313C #21576B #2F7D9A #42A1C5

Accessibility & contrast

On white

7.95

#21576B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#21576B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21576B

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21576B	#FFFFFF	#000000	##FFFFFF
##21576B	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C556C

Deuteranopia (green-blind)

#424E6B

Tritanopia (blue-blind)

#005D5D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21576b;
/* rgb */ color: rgb(33, 87, 107);
/* oklch */ color: oklch(43.0% 0.065 225.9);

Tailwind

colors: {
  custom: {
    50: '#668695',
    500: '#21576b',
    950: '#000000',
  },
}

SCSS

$custom: #21576b;
$custom-light: #668695;
$custom-dark: #000000;

JSON

{
  "hex": "#21576b",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 107
  },
  "hsl": {
    "h": 196.216,
    "s": 52.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.43,
    "c": 0.06505,
    "h": 225.9
  },
  "luminance": 0.08201
}

Semantic roles & 50–950 ramp

primary

#21576B

secondary

#9F6049

accent

#734CDC

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21576B

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

Preview Lab → · Contrast checker → · Palette generator →