#21576C#21576C

#21576C is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.0% C 0.066 H 227.1°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#21576C
RGB	rgb(33, 87, 108)
HSL	hsl(197, 53%, 28%)
HSV	hsv(197, 69%, 42%)
CMYK	cmyk(69.4%, 19.4%, 0%, 57.6%)
CIE-LAB	lab(34.44, -10.45, -17.27)
CIE-LCH	lch(34.44, 20.19, 238.83°)
OKLab	oklab(43.05% -0.0449 -0.0483)
OKLCH	oklch(43.05% 0.066 227.1)
XYZ	xyz(6.7411, 8.2217, 15.4161)
Luminance	0.0822 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21576C #6C3621

analogous

#216C5B #21576C #21326C

triadic

#21576C #6C2157 #576C21

tetradic

#21576C #5B216C #6C3621 #326C21

square

#21576C #5B216C #6C3621 #326C21

split-complementary

#21576C #6C2132 #6C5B21

monochromatic

#071317 #13313D #21576C #2F7D9B #42A1C5

Accessibility & contrast

On white

7.94

#21576C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#21576C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21576C

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21576C	#FFFFFF	#000000	##FFFFFF
##21576C	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C556D

Deuteranopia (green-blind)

#414E6C

Tritanopia (blue-blind)

#005D5E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21576c;
/* rgb */ color: rgb(33, 87, 108);
/* oklch */ color: oklch(43.0% 0.066 227.1);

Tailwind

colors: {
  custom: {
    50: '#668696',
    500: '#21576c',
    950: '#000000',
  },
}

SCSS

$custom: #21576c;
$custom-light: #668696;
$custom-dark: #000000;

JSON

{
  "hex": "#21576c",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 108
  },
  "hsl": {
    "h": 196.8,
    "s": 53.191,
    "l": 27.647
  },
  "oklch": {
    "l": 0.43049,
    "c": 0.06592,
    "h": 227.1
  },
  "luminance": 0.08222
}

Semantic roles & 50–950 ramp

primary

#21576C

secondary

#A06149

accent

#744BDD

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21576C

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

Preview Lab → · Contrast checker → · Palette generator →