#21728E#21728E

#21728E is a mid, moderate cyan. Relative luminance 0.143; OKLCH L 51.7% C 0.087 H 225.8°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#21728E
RGB	rgb(33, 114, 142)
HSL	hsl(195, 62%, 34%)
HSV	hsv(195, 77%, 56%)
CMYK	cmyk(76.8%, 19.7%, 0%, 44.3%)
CIE-LAB	lab(44.67, -14.05, -22.18)
CIE-LCH	lch(44.67, 26.25, 237.65°)
OKLab	oklab(51.72% -0.0605 -0.0622)
OKLCH	oklch(51.72% 0.087 225.8)
XYZ	xyz(11.5250, 14.3096, 27.7406)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21728E #8E3D21

analogous

#218E74 #21728E #213C8E

triadic

#21728E #8E2172 #728E21

tetradic

#21728E #74218E #8E3D21 #3C8E21

square

#21728E #74218E #8E3D21 #3C8E21

split-complementary

#21728E #8E213C #8E7421

monochromatic

#0A222B #154A5C #21728E #2D9AC0 #52B5D7

Accessibility & contrast

On white

5.44

#21728E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#21728E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21728E

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21728E	#FFFFFF	#000000	##FFFFFF
##21728E	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63708F

Deuteranopia (green-blind)

#54658E

Tritanopia (blue-blind)

#007A7B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #21728e;
/* rgb */ color: rgb(33, 114, 142);
/* oklch */ color: oklch(51.7% 0.087 225.8);

Tailwind

colors: {
  custom: {
    50: '#6e9aaf',
    500: '#21728e',
    950: '#000000',
  },
}

SCSS

$custom: #21728e;
$custom-light: #6e9aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#21728e",
  "rgb": {
    "r": 33,
    "g": 114,
    "b": 142
  },
  "hsl": {
    "h": 195.413,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.51718,
    "c": 0.08678,
    "h": 225.8
  },
  "luminance": 0.14311
}

Semantic roles & 50–950 ramp

primary

#21728E

secondary

#BA6C50

accent

#6C42E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21728E

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

Preview Lab → · Contrast checker → · Palette generator →