#21B5BD#21B5BD

#21B5BD is a light, moderate teal. Relative luminance 0.370; OKLCH L 70.6% C 0.114 H 200.7°. Best body text is #000000 at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#21B5BD
RGB	rgb(33, 181, 189)
HSL	hsl(183, 70%, 44%)
HSV	hsv(183, 83%, 74%)
CMYK	cmyk(82.5%, 4.2%, 0%, 25.9%)
CIE-LAB	lab(67.31, -33.14, -14.57)
CIE-LCH	lch(67.31, 36.20, 203.74°)
OKLab	oklab(70.56% -0.107 -0.0405)
OKLCH	oklch(70.56% 0.114 200.7)
XYZ	xyz(26.3322, 37.0418, 53.8962)
Luminance	0.3705 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B5BD #BD2921

analogous

#21BD77 #21B5BD #2167BD

triadic

#21B5BD #BD21B5 #B5BD21

tetradic

#21B5BD #7721BD #BD2921 #67BD21

square

#21B5BD #7721BD #BD2921 #67BD21

split-complementary

#21B5BD #BD2167 #BD7721

monochromatic

#0F5155 #188389 #21B5BD #3ED5DD #72E0E6

Accessibility & contrast

On white

2.50

#21B5BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.41

#21B5BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B5BD

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B5BD	#FFFFFF	#000000	##000000
##21B5BD	1.00	2.50	8.41	8.41
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.41	21.00	1.00	1.00
##000000	8.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7ADBE

Deuteranopia (green-blind)

#929DBE

Tritanopia (blue-blind)

#00BCB7

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #21b5bd;
/* rgb */ color: rgb(33, 181, 189);
/* oklch */ color: oklch(70.6% 0.114 200.7);

Tailwind

colors: {
  custom: {
    50: '#7bcbd0',
    500: '#21b5bd',
    950: '#000000',
  },
}

SCSS

$custom: #21b5bd;
$custom-light: #7bcbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#21b5bd",
  "rgb": {
    "r": 33,
    "g": 181,
    "b": 189
  },
  "hsl": {
    "h": 183.077,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.70558,
    "c": 0.11441,
    "h": 200.7
  },
  "luminance": 0.37045
}

Semantic roles & 50–950 ramp

primary

#21B5BD

secondary

#CD726D

accent

#443BED

background

#F8FCFC

surface

#EFF8F9

border

#CAD1D2

text

#0B1314

muted

#7C8282

Preview Lab

Preview with #21B5BD

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

Preview Lab → · Contrast checker → · Palette generator →