#21A4BB#21A4BB

#21A4BB is a light, moderate teal. Relative luminance 0.305; OKLCH L 66.3% C 0.109 H 213.1°. Best body text is #000000 at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#21A4BB
RGB	rgb(33, 164, 187)
HSL	hsl(189, 70%, 43%)
HSV	hsv(189, 82%, 73%)
CMYK	cmyk(82.4%, 12.3%, 0%, 26.7%)
CIE-LAB	lab(62.05, -25.43, -21.44)
CIE-LCH	lch(62.05, 33.27, 220.13°)
OKLab	oklab(66.28% -0.0917 -0.0599)
OKLCH	oklch(66.28% 0.109 213.1)
XYZ	xyz(22.8684, 30.4592, 51.6780)
Luminance	0.3046 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A4BB #BB3821

analogous

#21BB85 #21A4BB #2157BB

triadic

#21A4BB #BB21A4 #A4BB21

tetradic

#21A4BB #8521BB #BB3821 #57BB21

square

#21A4BB #8521BB #BB3821 #57BB21

split-complementary

#21A4BB #BB2157 #BB8521

monochromatic

#0F4953 #187687 #21A4BB #3DC5DD #71D4E6

Accessibility & contrast

On white

2.96

#21A4BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.09

#21A4BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A4BB

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A4BB	#FFFFFF	#000000	##000000
##21A4BB	1.00	2.96	7.09	7.09
#FFFFFF	2.96	1.00	21.00	21.00
#000000	7.09	21.00	1.00	1.00
##000000	7.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#939EBC

Deuteranopia (green-blind)

#7F90BB

Tritanopia (blue-blind)

#00ADAB

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #21a4bb;
/* rgb */ color: rgb(33, 164, 187);
/* oklch */ color: oklch(66.3% 0.109 213.1);

Tailwind

colors: {
  custom: {
    50: '#79bfcf',
    500: '#21a4bb',
    950: '#000000',
  },
}

SCSS

$custom: #21a4bb;
$custom-light: #79bfcf;
$custom-dark: #000000;

JSON

{
  "hex": "#21a4bb",
  "rgb": {
    "r": 33,
    "g": 164,
    "b": 187
  },
  "hsl": {
    "h": 188.961,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.66278,
    "c": 0.10948,
    "h": 213.1
  },
  "luminance": 0.30462
}

Semantic roles & 50–950 ramp

primary

#21A4BB

secondary

#CC7A6B

accent

#563BED

background

#F8FBFC

surface

#EFF7F9

border

#CAD0D2

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #21A4BB

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

Preview Lab → · Contrast checker → · Palette generator →