#21B4C1#21B4C1

#21B4C1 is a light, moderate teal. Relative luminance 0.368; OKLCH L 70.5% C 0.115 H 204.4°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX#21B4C1
RGBrgb(33, 180, 193)
HSLhsl(185, 71%, 44%)
HSVhsv(185, 83%, 76%)
CMYKcmyk(82.9%, 6.7%, 0%, 24.3%)
CIE-LABlab(67.14, -31.42, -17.04)
CIE-LCHlch(67.14, 35.74, 208.48°)
OKLaboklab(70.46% -0.1043 -0.0474)
OKLCHoklch(70.46% 0.115 204.4)
XYZxyz(26.5698, 36.8127, 56.1469)
Luminance0.3682 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21B4C1 #C12E21
analogous
#21C17E #21B4C1 #2164C1
triadic
#21B4C1 #C121B4 #B4C121
tetradic
#21B4C1 #7E21C1 #C12E21 #64C121
square
#21B4C1 #7E21C1 #C12E21 #64C121
split-complementary
#21B4C1 #C12164 #C17E21
monochromatic
#0F5358 #18838D #21B4C1 #41D2DE #75DEE7

Accessibility & contrast

On white

2.51
#21B4C1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.36
#21B4C1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B4C1
8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21B4C1#FFFFFF#000000##000000
##21B4C11.002.518.368.36
#FFFFFF2.511.0021.0021.00
#0000008.3621.001.001.00
##0000008.3621.001.001.00

Color blindness preview

Protanopia (red-blind)
#A4ACC2
Deuteranopia (green-blind)
#909DC1
Tritanopia (blue-blind)
#00BCB8
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #21b4c1;
/* rgb */ color: rgb(33, 180, 193);
/* oklch */ color: oklch(70.5% 0.115 204.4);
Tailwind
colors: {
  custom: {
    50: '#7ccbd3',
    500: '#21b4c1',
    950: '#000000',
  },
}
SCSS
$custom: #21b4c1;
$custom-light: #7ccbd3;
$custom-dark: #000000;
JSON
{
  "hex": "#21b4c1",
  "rgb": {
    "r": 33,
    "g": 180,
    "b": 193
  },
  "hsl": {
    "h": 184.875,
    "s": 70.796,
    "l": 44.314
  },
  "oklch": {
    "l": 0.70462,
    "c": 0.11461,
    "h": 204.4
  },
  "luminance": 0.36816
}

Semantic roles & 50–950 ramp

primary
#21B4C1
secondary
#CF776F
accent
#493AEE
background
#F8FCFC
surface
#F0F8F9
border
#CBD1D2
text
#0B1314
muted
#7C8282

Preview Lab

Preview with #21B4C1

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

Preview Lab → · Contrast checker → · Palette generator →

#21B4C1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva