#21B8BC#21B8BC

#21B8BC is a light, moderate teal. Relative luminance 0.382; OKLCH L 71.3% C 0.116 H 197.8°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#21B8BC
RGB	rgb(33, 184, 188)
HSL	hsl(182, 70%, 43%)
HSV	hsv(182, 82%, 74%)
CMYK	cmyk(82.4%, 2.1%, 0%, 26.3%)
CIE-LAB	lab(68.19, -34.86, -12.69)
CIE-LCH	lch(68.19, 37.10, 200.01°)
OKLab	oklab(71.26% -0.1103 -0.0353)
OKLCH	oklch(71.26% 0.116 197.8)
XYZ	xyz(26.8406, 38.2317, 53.5320)
Luminance	0.3824 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B8BC #BC2521

analogous

#21BC72 #21B8BC #216BBC

triadic

#21B8BC #BC21B8 #B8BC21

tetradic

#21B8BC #7221BC #BC2521 #6BBC21

square

#21B8BC #7221BC #BC2521 #6BBC21

split-complementary

#21B8BC #BC216B #BC7221

monochromatic

#0F5254 #188588 #21B8BC #3DD9DD #71E3E6

Accessibility & contrast

On white

2.43

#21B8BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#21B8BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B8BC

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B8BC	#FFFFFF	#000000	##000000
##21B8BC	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAAFBD

Deuteranopia (green-blind)

#96A0BD

Tritanopia (blue-blind)

#00BFB9

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #21b8bc;
/* rgb */ color: rgb(33, 184, 188);
/* oklch */ color: oklch(71.3% 0.116 197.8);

Tailwind

colors: {
  custom: {
    50: '#7cced0',
    500: '#21b8bc',
    950: '#000000',
  },
}

SCSS

$custom: #21b8bc;
$custom-light: #7cced0;
$custom-dark: #000000;

JSON

{
  "hex": "#21b8bc",
  "rgb": {
    "r": 33,
    "g": 184,
    "b": 188
  },
  "hsl": {
    "h": 181.548,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.71264,
    "c": 0.11579,
    "h": 197.8
  },
  "luminance": 0.38235
}

Semantic roles & 50–950 ramp

primary

#21B8BC

secondary

#CD6E6C

accent

#3F3BED

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0B1314

muted

#7C8282

Preview Lab

Preview with #21B8BC

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

Preview Lab → · Contrast checker → · Palette generator →