#21566D#21566D

#21566D is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.8% C 0.067 H 229.8°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#21566D
RGB	rgb(33, 86, 109)
HSL	hsl(198, 54%, 28%)
HSV	hsv(198, 70%, 43%)
CMYK	cmyk(69.7%, 21.1%, 0%, 57.3%)
CIE-LAB	lab(34.15, -9.49, -18.34)
CIE-LCH	lch(34.15, 20.65, 242.64°)
OKLab	oklab(42.83% -0.0433 -0.0513)
OKLCH	oklch(42.83% 0.067 229.8)
XYZ	xyz(6.7142, 8.0823, 15.6712)
Luminance	0.0808 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21566D #6D3821

analogous

#216D5E #21566D #21306D

triadic

#21566D #6D2156 #566D21

tetradic

#21566D #5E216D #6D3821 #306D21

square

#21566D #5E216D #6D3821 #306D21

split-complementary

#21566D #6D2130 #6D5E21

monochromatic

#071317 #13313E #21566D #2F7B9C #429EC6

Accessibility & contrast

On white

8.03

#21566D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#21566D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21566D

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21566D	#FFFFFF	#000000	##FFFFFF
##21566D	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A556E

Deuteranopia (green-blind)

#404D6D

Tritanopia (blue-blind)

#005C5E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #21566d;
/* rgb */ color: rgb(33, 86, 109);
/* oklch */ color: oklch(42.8% 0.067 229.8);

Tailwind

colors: {
  custom: {
    50: '#668597',
    500: '#21566d',
    950: '#000000',
  },
}

SCSS

$custom: #21566d;
$custom-light: #668597;
$custom-dark: #000000;

JSON

{
  "hex": "#21566d",
  "rgb": {
    "r": 33,
    "g": 86,
    "b": 109
  },
  "hsl": {
    "h": 198.158,
    "s": 53.521,
    "l": 27.843
  },
  "oklch": {
    "l": 0.42834,
    "c": 0.06717,
    "h": 229.8
  },
  "luminance": 0.08083
}

Semantic roles & 50–950 ramp

primary

#21566D

secondary

#A16449

accent

#774BDD

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21566D

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

Preview Lab → · Contrast checker → · Palette generator →