#21B0B3#21B0B3

#21B0B3 is a light, moderate teal. Relative luminance 0.346; OKLCH L 68.9% C 0.112 H 197.1°. Best body text is #000000 at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#21B0B3
RGB	rgb(33, 176, 179)
HSL	hsl(181, 69%, 42%)
HSV	hsv(181, 82%, 70%)
CMYK	cmyk(81.6%, 1.7%, 0%, 29.8%)
CIE-LAB	lab(65.46, -33.83, -11.82)
CIE-LCH	lch(65.46, 35.83, 199.26°)
OKLab	oklab(68.95% -0.1066 -0.0329)
OKLCH	oklch(68.95% 0.112 197.1)
XYZ	xyz(24.2854, 34.6256, 48.0425)
Luminance	0.3463 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B0B3 #B32421

analogous

#21B36D #21B0B3 #2167B3

triadic

#21B0B3 #B321B0 #B0B321

tetradic

#21B0B3 #6D21B3 #B32421 #67B321

square

#21B0B3 #6D21B3 #B32421 #67B321

split-complementary

#21B0B3 #B32167 #B36D21

monochromatic

#0E4A4C #177D7F #21B0B3 #37D7DA #6BE1E4

Accessibility & contrast

On white

2.65

#21B0B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.93

#21B0B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B0B3

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B0B3	#FFFFFF	#000000	##000000
##21B0B3	1.00	2.65	7.93	7.93
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.93	21.00	1.00	1.00
##000000	7.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3A7B3

Deuteranopia (green-blind)

#8F99B4

Tritanopia (blue-blind)

#00B6B1

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #21b0b3;
/* rgb */ color: rgb(33, 176, 179);
/* oklch */ color: oklch(68.9% 0.112 197.1);

Tailwind

colors: {
  custom: {
    50: '#7ac8c9',
    500: '#21b0b3',
    950: '#000000',
  },
}

SCSS

$custom: #21b0b3;
$custom-light: #7ac8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#21b0b3",
  "rgb": {
    "r": 33,
    "g": 176,
    "b": 179
  },
  "hsl": {
    "h": 181.233,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.68947,
    "c": 0.11154,
    "h": 197.1
  },
  "luminance": 0.34629
}

Semantic roles & 50–950 ramp

primary

#21B0B3

secondary

#CA6866

accent

#403CEC

background

#F8FCFC

surface

#EFF8F8

border

#CAD1D1

text

#0B1313

muted

#7C8282

Preview Lab

Preview with #21B0B3

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

Preview Lab → · Contrast checker → · Palette generator →