#21B2B3#21B2B3

#21B2B3 is a light, moderate teal. Relative luminance 0.354; OKLCH L 69.4% C 0.113 H 195.6°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#21B2B3
RGB	rgb(33, 178, 179)
HSL	hsl(180, 69%, 42%)
HSV	hsv(180, 82%, 70%)
CMYK	cmyk(81.6%, 0.6%, 0%, 29.8%)
CIE-LAB	lab(66.07, -34.77, -10.90)
CIE-LCH	lch(66.07, 36.43, 197.40°)
OKLab	oklab(69.45% -0.1085 -0.0303)
OKLCH	oklch(69.45% 0.113 195.6)
XYZ	xyz(24.6805, 35.4157, 48.1742)
Luminance	0.3542 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B2B3 #B32221

analogous

#21B36B #21B2B3 #2169B3

triadic

#21B2B3 #B321B2 #B2B321

tetradic

#21B2B3 #6B21B3 #B32221 #69B321

square

#21B2B3 #6B21B3 #B32221 #69B321

split-complementary

#21B2B3 #B32169 #B36B21

monochromatic

#0E4B4C #177F7F #21B2B3 #37D9DA #6BE3E4

Accessibility & contrast

On white

2.60

#21B2B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#21B2B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B2B3

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B2B3	#FFFFFF	#000000	##000000
##21B2B3	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5A9B3

Deuteranopia (green-blind)

#929AB4

Tritanopia (blue-blind)

#00B8B2

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #21b2b3;
/* rgb */ color: rgb(33, 178, 179);
/* oklch */ color: oklch(69.4% 0.113 195.6);

Tailwind

colors: {
  custom: {
    50: '#7ac9c9',
    500: '#21b2b3',
    950: '#000000',
  },
}

SCSS

$custom: #21b2b3;
$custom-light: #7ac9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#21b2b3",
  "rgb": {
    "r": 33,
    "g": 178,
    "b": 179
  },
  "hsl": {
    "h": 180.411,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.69447,
    "c": 0.11266,
    "h": 195.6
  },
  "luminance": 0.35419
}

Semantic roles & 50–950 ramp

primary

#21B2B3

secondary

#CA6766

accent

#3D3CEC

background

#F8FCFC

surface

#EFF8F8

border

#CAD1D1

text

#0B1313

muted

#7C8282

Preview Lab

Preview with #21B2B3

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

Preview Lab → · Contrast checker → · Palette generator →