#21A1B2#21A1B2

#21A1B2 is a light, moderate teal. Relative luminance 0.290; OKLCH L 65.2% C 0.106 H 208.8°. Best body text is #000000 at 6.81:1 contrast (WCAG AA passes).

Color values

HEX#21A1B2
RGBrgb(33, 161, 178)
HSLhsl(187, 69%, 41%)
HSVhsv(187, 81%, 70%)
CMYKcmyk(81.5%, 9.6%, 0%, 30.2%)
CIE-LABlab(60.80, -26.85, -18.28)
CIE-LCHlch(60.80, 32.48, 214.25°)
OKLaboklab(65.16% -0.0925 -0.0509)
OKLCHoklch(65.16% 0.106 208.8)
XYZxyz(21.4044, 29.0247, 46.5851)
Luminance0.2903 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21A1B2 #B23221
analogous
#21B27B #21A1B2 #2159B2
triadic
#21A1B2 #B221A1 #A1B221
tetradic
#21A1B2 #7B21B2 #B23221 #59B221
square
#21A1B2 #7B21B2 #B23221 #59B221
split-complementary
#21A1B2 #B22159 #B27B21
monochromatic
#0E444B #17727E #21A1B2 #36C7DA #6AD5E3

Accessibility & contrast

On white

3.09
#21A1B2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.81
#21A1B2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21A1B2
6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21A1B2#FFFFFF#000000##000000
##21A1B21.003.096.816.81
#FFFFFF3.091.0021.0021.00
#0000006.8121.001.001.00
##0000006.8121.001.001.00

Color blindness preview

Protanopia (red-blind)
#929BB3
Deuteranopia (green-blind)
#7F8DB2
Tritanopia (blue-blind)
#00A9A6
Achromatopsia (no color)
#939393

Design tokens & code

CSS
--color: #21a1b2;
/* rgb */ color: rgb(33, 161, 178);
/* oklch */ color: oklch(65.2% 0.106 208.8);
Tailwind
colors: {
  custom: {
    50: '#78bdc9',
    500: '#21a1b2',
    950: '#000000',
  },
}
SCSS
$custom: #21a1b2;
$custom-light: #78bdc9;
$custom-dark: #000000;
JSON
{
  "hex": "#21a1b2",
  "rgb": {
    "r": 33,
    "g": 161,
    "b": 178
  },
  "hsl": {
    "h": 187.034,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.65165,
    "c": 0.10563,
    "h": 208.8
  },
  "luminance": 0.29027
}

Semantic roles & 50–950 ramp

primary
#21A1B2
secondary
#C97166
accent
#513CEC
background
#F8FBFC
surface
#EFF6F8
border
#CAD0D1
text
#0A1213
muted
#7C8182

Preview Lab

Preview with #21A1B2

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

Preview Lab → · Contrast checker → · Palette generator →

#21A1B2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva