#21728C#21728C

#21728C is a mid, moderate cyan. Relative luminance 0.143; OKLCH L 51.6% C 0.085 H 224.0°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#21728C
RGB	rgb(33, 114, 140)
HSL	hsl(195, 62%, 34%)
HSV	hsv(195, 76%, 55%)
CMYK	cmyk(76.4%, 18.6%, 0%, 45.1%)
CIE-LAB	lab(44.59, -14.75, -21.12)
CIE-LCH	lch(44.59, 25.76, 235.06°)
OKLab	oklab(51.62% -0.0613 -0.0591)
OKLCH	oklch(51.62% 0.085 224)
XYZ	xyz(11.3762, 14.2501, 26.9568)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21728C #8C3B21

analogous

#218C71 #21728C #213D8C

triadic

#21728C #8C2172 #728C21

tetradic

#21728C #71218C #8C3B21 #3D8C21

square

#21728C #71218C #8C3B21 #3D8C21

split-complementary

#21728C #8C213D #8C7121

monochromatic

#0A2129 #154A5A #21728C #2D9ABE #51B6D6

Accessibility & contrast

On white

5.45

#21728C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#21728C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21728C

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21728C	#FFFFFF	#000000	##FFFFFF
##21728C	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#636F8D

Deuteranopia (green-blind)

#55658C

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #21728c;
/* rgb */ color: rgb(33, 114, 140);
/* oklch */ color: oklch(51.6% 0.085 224.0);

Tailwind

colors: {
  custom: {
    50: '#6d9aad',
    500: '#21728c',
    950: '#000000',
  },
}

SCSS

$custom: #21728c;
$custom-light: #6d9aad;
$custom-dark: #000000;

JSON

{
  "hex": "#21728c",
  "rgb": {
    "r": 33,
    "g": 114,
    "b": 140
  },
  "hsl": {
    "h": 194.579,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.51623,
    "c": 0.08521,
    "h": 224
  },
  "luminance": 0.14251
}

Semantic roles & 50–950 ramp

primary

#21728C

secondary

#B9694F

accent

#6A43E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21728C

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

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