#21728A#21728A

#21728A is a mid, moderate cyan. Relative luminance 0.142; OKLCH L 51.5% C 0.084 H 222.1°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#21728A
RGB	rgb(33, 114, 138)
HSL	hsl(194, 61%, 34%)
HSV	hsv(194, 76%, 54%)
CMYK	cmyk(76.1%, 17.4%, 0%, 45.9%)
CIE-LAB	lab(44.51, -15.45, -20.06)
CIE-LCH	lch(44.51, 25.32, 232.38°)
OKLab	oklab(51.53% -0.0621 -0.0561)
OKLCH	oklch(51.53% 0.084 222.1)
XYZ	xyz(11.2301, 14.1916, 26.1872)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21728A #8A3921

analogous

#218A6D #21728A #213D8A

triadic

#21728A #8A2172 #728A21

tetradic

#21728A #6D218A #8A3921 #3D8A21

square

#21728A #6D218A #8A3921 #3D8A21

split-complementary

#21728A #8A213D #8A6D21

monochromatic

#092027 #154959 #21728A #2D9BBB #50B7D5

Accessibility & contrast

On white

5.47

#21728A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#21728A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21728A

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21728A	#FFFFFF	#000000	##FFFFFF
##21728A	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#646F8B

Deuteranopia (green-blind)

#56658A

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #21728a;
/* rgb */ color: rgb(33, 114, 138);
/* oklch */ color: oklch(51.5% 0.084 222.1);

Tailwind

colors: {
  custom: {
    50: '#6d9aac',
    500: '#21728a',
    950: '#000000',
  },
}

SCSS

$custom: #21728a;
$custom-light: #6d9aac;
$custom-dark: #000000;

JSON

{
  "hex": "#21728a",
  "rgb": {
    "r": 33,
    "g": 114,
    "b": 138
  },
  "hsl": {
    "h": 193.714,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.51529,
    "c": 0.08372,
    "h": 222.1
  },
  "luminance": 0.14193
}

Semantic roles & 50–950 ramp

primary

#21728A

secondary

#B9674E

accent

#6843E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21728A

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

Preview Lab → · Contrast checker → · Palette generator →