#21537A#21537A

#21537A is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.8% C 0.084 H 245.2°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#21537A
RGB	rgb(33, 83, 122)
HSL	hsl(206, 57%, 30%)
HSV	hsv(206, 73%, 48%)
CMYK	cmyk(73%, 32%, 0%, 52.2%)
CIE-LAB	lab(33.80, -2.80, -26.97)
CIE-LCH	lch(33.80, 27.12, 264.08°)
OKLab	oklab(42.76% -0.0352 -0.0763)
OKLCH	oklch(42.76% 0.084 245.2)
XYZ	xyz(7.2320, 7.9142, 19.5550)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21537A #7A4821

analogous

#217A74 #21537A #21277A

triadic

#21537A #7A2153 #537A21

tetradic

#21537A #74217A #7A4821 #277A21

square

#21537A #74217A #7A4821 #277A21

split-complementary

#21537A #7A2127 #7A7421

monochromatic

#07111A #14324A #21537A #2E74AA #4893CD

Accessibility & contrast

On white

8.13

#21537A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#21537A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21537A

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21537A	#FFFFFF	#000000	##FFFFFF
##21537A	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41547C

Deuteranopia (green-blind)

#354C79

Tritanopia (blue-blind)

#005C61

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #21537a;
/* rgb */ color: rgb(33, 83, 122);
/* oklch */ color: oklch(42.8% 0.084 245.2);

Tailwind

colors: {
  custom: {
    50: '#6883a0',
    500: '#21537a',
    950: '#000000',
  },
}

SCSS

$custom: #21537a;
$custom-light: #6883a0;
$custom-dark: #000000;

JSON

{
  "hex": "#21537a",
  "rgb": {
    "r": 33,
    "g": 83,
    "b": 122
  },
  "hsl": {
    "h": 206.292,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.42763,
    "c": 0.08403,
    "h": 245.2
  },
  "luminance": 0.07915
}

Semantic roles & 50–950 ramp

primary

#21537A

secondary

#AD754A

accent

#8A47E1

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #21537A

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

Preview Lab → · Contrast checker → · Palette generator →