#21A4CA#21A4CA

#21A4CA is a light, moderate cyan. Relative luminance 0.311; OKLCH L 66.9% C 0.118 H 223.4°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX#21A4CA
RGBrgb(33, 164, 202)
HSLhsl(193, 72%, 46%)
HSVhsv(193, 84%, 79%)
CMYKcmyk(83.7%, 18.8%, 0%, 20.8%)
CIE-LABlab(62.62, -20.42, -28.94)
CIE-LCHlch(62.62, 35.42, 234.79°)
OKLaboklab(66.93% -0.0858 -0.0812)
OKLCHoklch(66.93% 0.118 223.4)
XYZxyz(24.5588, 31.1354, 60.5810)
Luminance0.3114 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21A4CA #CA4721
analogous
#21CA9B #21A4CA #214FCA
triadic
#21A4CA #CA21A4 #A4CA21
tetradic
#21A4CA #9B21CA #CA4721 #4FCA21
square
#21A4CA #9B21CA #CA4721 #4FCA21
split-complementary
#21A4CA #CA214F #CA9B21
monochromatic
#104F61 #187995 #21A4CA #47BEE1 #7CD1EA

Accessibility & contrast

On white

2.91
#21A4CA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.23
#21A4CA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A4CA
7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21A4CA#FFFFFF#000000##000000
##21A4CA1.002.917.237.23
#FFFFFF2.911.0021.0021.00
#0000007.2321.001.001.00
##0000007.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#8EA0CC
Deuteranopia (green-blind)
#7991CA
Tritanopia (blue-blind)
#00B0B0
Achromatopsia (no color)
#979797

Design tokens & code

CSS
--color: #21a4ca;
/* rgb */ color: rgb(33, 164, 202);
/* oklch */ color: oklch(66.9% 0.118 223.4);
Tailwind
colors: {
  custom: {
    50: '#7bbfda',
    500: '#21a4ca',
    950: '#000000',
  },
}
SCSS
$custom: #21a4ca;
$custom-light: #7bbfda;
$custom-dark: #000000;
JSON
{
  "hex": "#21a4ca",
  "rgb": {
    "r": 33,
    "g": 164,
    "b": 202
  },
  "hsl": {
    "h": 193.491,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.66929,
    "c": 0.11813,
    "h": 223.4
  },
  "luminance": 0.31139
}

Semantic roles & 50–950 ramp

primary
#21A4CA
secondary
#D28A75
accent
#6239EF
background
#F8FBFD
surface
#EFF7FA
border
#CAD0D3
text
#0B1214
muted
#7C8183

Preview Lab

Preview with #21A4CA

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

Preview Lab → · Contrast checker → · Palette generator →

#21A4CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva