#21A4B3#21A4B3

#21A4B3 is a light, moderate teal. Relative luminance 0.301; OKLCH L 66.0% C 0.107 H 207.0°. Best body text is #000000 at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#21A4B3
RGB	rgb(33, 164, 179)
HSL	hsl(186, 69%, 42%)
HSV	hsv(186, 82%, 70%)
CMYK	cmyk(81.6%, 8.4%, 0%, 29.8%)
CIE-LAB	lab(61.76, -28.02, -17.39)
CIE-LCH	lch(61.76, 32.98, 211.82°)
OKLab	oklab(65.95% -0.095 -0.0484)
OKLCH	oklch(65.95% 0.107 207)
XYZ	xyz(22.0357, 30.1261, 47.2926)
Luminance	0.3013 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A4B3 #B33021

analogous

#21B379 #21A4B3 #215BB3

triadic

#21A4B3 #B321A4 #A4B321

tetradic

#21A4B3 #7921B3 #B33021 #5BB321

square

#21A4B3 #7921B3 #B33021 #5BB321

split-complementary

#21A4B3 #B3215B #B37921

monochromatic

#0E454C #17757F #21A4B3 #37C9DA #6BD7E4

Accessibility & contrast

On white

2.99

#21A4B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.03

#21A4B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A4B3

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A4B3	#FFFFFF	#000000	##000000
##21A4B3	1.00	2.99	7.03	7.03
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.03	21.00	1.00	1.00
##000000	7.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#959DB4

Deuteranopia (green-blind)

#828FB3

Tritanopia (blue-blind)

#00ACA8

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #21a4b3;
/* rgb */ color: rgb(33, 164, 179);
/* oklch */ color: oklch(66.0% 0.107 207.0);

Tailwind

colors: {
  custom: {
    50: '#78bfc9',
    500: '#21a4b3',
    950: '#000000',
  },
}

SCSS

$custom: #21a4b3;
$custom-light: #78bfc9;
$custom-dark: #000000;

JSON

{
  "hex": "#21a4b3",
  "rgb": {
    "r": 33,
    "g": 164,
    "b": 179
  },
  "hsl": {
    "h": 186.164,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.65952,
    "c": 0.10664,
    "h": 207
  },
  "luminance": 0.30129
}

Semantic roles & 50–950 ramp

primary

#21A4B3

secondary

#CA7066

accent

#4E3CEC

background

#F8FBFC

surface

#EFF7F8

border

#CAD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #21A4B3

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

Preview Lab → · Contrast checker → · Palette generator →