#21B4BD#21B4BD

#21B4BD is a light, moderate teal. Relative luminance 0.366; OKLCH L 70.3% C 0.114 H 201.5°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#21B4BD
RGB	rgb(33, 180, 189)
HSL	hsl(183, 70%, 44%)
HSV	hsv(183, 83%, 74%)
CMYK	cmyk(82.5%, 4.8%, 0%, 25.9%)
CIE-LAB	lab(67.00, -32.66, -15.03)
CIE-LCH	lch(67.00, 35.95, 204.72°)
OKLab	oklab(70.31% -0.106 -0.0418)
OKLCH	oklch(70.31% 0.114 201.5)
XYZ	xyz(26.1296, 36.6366, 53.8287)
Luminance	0.3664 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B4BD #BD2A21

analogous

#21BD78 #21B4BD #2166BD

triadic

#21B4BD #BD21B4 #B4BD21

tetradic

#21B4BD #7821BD #BD2A21 #66BD21

square

#21B4BD #7821BD #BD2A21 #66BD21

split-complementary

#21B4BD #BD2166 #BD7821

monochromatic

#0F5155 #188289 #21B4BD #3ED4DD #72E0E6

Accessibility & contrast

On white

2.52

#21B4BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#21B4BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B4BD

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B4BD	#FFFFFF	#000000	##000000
##21B4BD	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5ACBE

Deuteranopia (green-blind)

#919DBE

Tritanopia (blue-blind)

#00BBB6

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #21b4bd;
/* rgb */ color: rgb(33, 180, 189);
/* oklch */ color: oklch(70.3% 0.114 201.5);

Tailwind

colors: {
  custom: {
    50: '#7bcbd0',
    500: '#21b4bd',
    950: '#000000',
  },
}

SCSS

$custom: #21b4bd;
$custom-light: #7bcbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#21b4bd",
  "rgb": {
    "r": 33,
    "g": 180,
    "b": 189
  },
  "hsl": {
    "h": 183.462,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.70311,
    "c": 0.11398,
    "h": 201.5
  },
  "luminance": 0.3664
}

Semantic roles & 50–950 ramp

primary

#21B4BD

secondary

#CD726D

accent

#453BED

background

#F8FCFC

surface

#EFF8F9

border

#CAD1D2

text

#0B1314

muted

#7C8282

Preview Lab

Preview with #21B4BD

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

Preview Lab → · Contrast checker → · Palette generator →