#21516F#21516F

#21516F is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.6% C 0.072 H 239.3°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#21516F
RGB	rgb(33, 81, 111)
HSL	hsl(203, 54%, 28%)
HSV	hsv(203, 70%, 44%)
CMYK	cmyk(70.3%, 27%, 0%, 56.5%)
CIE-LAB	lab(32.60, -5.68, -22.00)
CIE-LCH	lch(32.60, 22.72, 255.53°)
OKLab	oklab(41.63% -0.0368 -0.0619)
OKLCH	oklch(41.63% 0.072 239.3)
XYZ	xyz(6.4378, 7.3552, 16.1163)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21516F #6F3F21

analogous

#216F66 #21516F #212A6F

triadic

#21516F #6F2151 #516F21

tetradic

#21516F #66216F #6F3F21 #2A6F21

square

#21516F #66216F #6F3F21 #2A6F21

split-complementary

#21516F #6F212A #6F6621

monochromatic

#071118 #132F40 #21516F #2F739E #4394C7

Accessibility & contrast

On white

8.50

#21516F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#21516F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21516F

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21516F	#FFFFFF	#000000	##FFFFFF
##21516F	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435170

Deuteranopia (green-blind)

#38496E

Tritanopia (blue-blind)

#00595B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #21516f;
/* rgb */ color: rgb(33, 81, 111);
/* oklch */ color: oklch(41.6% 0.072 239.3);

Tailwind

colors: {
  custom: {
    50: '#668198',
    500: '#21516f',
    950: '#000000',
  },
}

SCSS

$custom: #21516f;
$custom-light: #668198;
$custom-dark: #000000;

JSON

{
  "hex": "#21516f",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 111
  },
  "hsl": {
    "h": 203.077,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.41631,
    "c": 0.07202,
    "h": 239.3
  },
  "luminance": 0.07356
}

Semantic roles & 50–950 ramp

primary

#21516F

secondary

#A36C49

accent

#834ADE

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #21516F

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

Preview Lab → · Contrast checker → · Palette generator →