#21A6BB#21A6BB

#21A6BB is a light, moderate teal. Relative luminance 0.312; OKLCH L 66.8% C 0.110 H 211.4°. Best body text is #000000 at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#21A6BB
RGB	rgb(33, 166, 187)
HSL	hsl(188, 70%, 43%)
HSV	hsv(188, 82%, 73%)
CMYK	cmyk(82.4%, 11.2%, 0%, 26.7%)
CIE-LAB	lab(62.66, -26.44, -20.51)
CIE-LCH	lch(62.66, 33.46, 217.80°)
OKLab	oklab(66.77% -0.0936 -0.0572)
OKLCH	oklch(66.77% 0.11 211.4)
XYZ	xyz(23.2291, 31.1807, 51.7983)
Luminance	0.3118 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A6BB #BB3621

analogous

#21BB83 #21A6BB #2159BB

triadic

#21A6BB #BB21A6 #A6BB21

tetradic

#21A6BB #8321BB #BB3621 #59BB21

square

#21A6BB #8321BB #BB3621 #59BB21

split-complementary

#21A6BB #BB2159 #BB8321

monochromatic

#0F4A53 #187887 #21A6BB #3DC7DD #71D6E6

Accessibility & contrast

On white

2.90

#21A6BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.24

#21A6BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A6BB

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A6BB	#FFFFFF	#000000	##000000
##21A6BB	1.00	2.90	7.24	7.24
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.24	21.00	1.00	1.00
##000000	7.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95A0BC

Deuteranopia (green-blind)

#8191BB

Tritanopia (blue-blind)

#00AFAC

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #21a6bb;
/* rgb */ color: rgb(33, 166, 187);
/* oklch */ color: oklch(66.8% 0.110 211.4);

Tailwind

colors: {
  custom: {
    50: '#79c0cf',
    500: '#21a6bb',
    950: '#000000',
  },
}

SCSS

$custom: #21a6bb;
$custom-light: #79c0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#21a6bb",
  "rgb": {
    "r": 33,
    "g": 166,
    "b": 187
  },
  "hsl": {
    "h": 188.182,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.66771,
    "c": 0.10967,
    "h": 211.4
  },
  "luminance": 0.31184
}

Semantic roles & 50–950 ramp

primary

#21A6BB

secondary

#CC796B

accent

#533BED

background

#F8FBFC

surface

#EFF7F9

border

#CAD0D2

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #21A6BB

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

Preview Lab → · Contrast checker → · Palette generator →