#21ABCA#21ABCA

#21ABCA is a light, moderate cyan. Relative luminance 0.337; OKLCH L 68.6% C 0.117 H 217.9°. Best body text is #000000 at 7.74:1 contrast (WCAG AA passes).

Color values

HEX#21ABCA
RGBrgb(33, 171, 202)
HSLhsl(191, 72%, 46%)
HSVhsv(191, 84%, 79%)
CMYKcmyk(83.7%, 15.3%, 0%, 20.8%)
CIE-LABlab(64.73, -24.05, -25.69)
CIE-LCHlch(64.73, 35.19, 226.89°)
OKLaboklab(68.63% -0.0922 -0.0719)
OKLCHoklch(68.63% 0.117 217.9)
XYZxyz(25.8462, 33.7101, 61.0101)
Luminance0.3371 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21ABCA #CA4021
analogous
#21CA94 #21ABCA #2156CA
triadic
#21ABCA #CA21AB #ABCA21
tetradic
#21ABCA #9421CA #CA4021 #56CA21
square
#21ABCA #9421CA #CA4021 #56CA21
split-complementary
#21ABCA #CA2156 #CA9421
monochromatic
#105261 #187E95 #21ABCA #47C5E1 #7CD5EA

Accessibility & contrast

On white

2.71
#21ABCA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.74
#21ABCA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21ABCA
7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21ABCA#FFFFFF#000000##000000
##21ABCA1.002.717.747.74
#FFFFFF2.711.0021.0021.00
#0000007.7421.001.001.00
##0000007.7421.001.001.00

Color blindness preview

Protanopia (red-blind)
#97A6CC
Deuteranopia (green-blind)
#8296CA
Tritanopia (blue-blind)
#00B6B5
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #21abca;
/* rgb */ color: rgb(33, 171, 202);
/* oklch */ color: oklch(68.6% 0.117 217.9);
Tailwind
colors: {
  custom: {
    50: '#7cc4da',
    500: '#21abca',
    950: '#000000',
  },
}
SCSS
$custom: #21abca;
$custom-light: #7cc4da;
$custom-dark: #000000;
JSON
{
  "hex": "#21abca",
  "rgb": {
    "r": 33,
    "g": 171,
    "b": 202
  },
  "hsl": {
    "h": 191.006,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.68626,
    "c": 0.11694,
    "h": 217.9
  },
  "luminance": 0.33713
}

Semantic roles & 50–950 ramp

primary
#21ABCA
secondary
#D28675
accent
#5A39EF
background
#F8FCFD
surface
#F0F8FA
border
#CBD1D3
text
#0B1214
muted
#7C8183

Preview Lab

Preview with #21ABCA

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

Preview Lab → · Contrast checker → · Palette generator →

#21ABCA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva