#21999B#21999B

#21999B is a light, moderate teal. Relative luminance 0.255; OKLCH L 62.3% C 0.099 H 196.7°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#21999B
RGB	rgb(33, 153, 155)
HSL	hsl(181, 65%, 37%)
HSV	hsv(181, 79%, 61%)
CMYK	cmyk(78.7%, 1.3%, 0%, 39.2%)
CIE-LAB	lab(57.53, -30.17, -10.19)
CIE-LCH	lch(57.53, 31.85, 198.67°)
OKLab	oklab(62.25% -0.0947 -0.0283)
OKLCH	oklch(62.25% 0.099 196.7)
XYZ	xyz(17.9321, 25.4701, 34.9751)
Luminance	0.2547 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21999B #9B2321

analogous

#219B60 #21999B #215C9B

triadic

#21999B #9B2199 #999B21

tetradic

#21999B #60219B #9B2321 #5C9B21

square

#21999B #60219B #9B2321 #5C9B21

split-complementary

#21999B #9B215C #9B6021

monochromatic

#0C3536 #166769 #21999B #2CCBCD #5ADADC

Accessibility & contrast

On white

3.45

#21999B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#21999B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21999B

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21999B	#FFFFFF	#000000	##000000
##21999B	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E919B

Deuteranopia (green-blind)

#7D859C

Tritanopia (blue-blind)

#009E99

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #21999b;
/* rgb */ color: rgb(33, 153, 155);
/* oklch */ color: oklch(62.3% 0.099 196.7);

Tailwind

colors: {
  custom: {
    50: '#74b7b8',
    500: '#21999b',
    950: '#000000',
  },
}

SCSS

$custom: #21999b;
$custom-light: #74b7b8;
$custom-dark: #000000;

JSON

{
  "hex": "#21999b",
  "rgb": {
    "r": 33,
    "g": 153,
    "b": 155
  },
  "hsl": {
    "h": 180.984,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.62254,
    "c": 0.09888,
    "h": 196.7
  },
  "luminance": 0.25472
}

Semantic roles & 50–950 ramp

primary

#21999B

secondary

#C05958

accent

#4340E8

background

#F7FBFB

surface

#EEF6F6

border

#C9D0D0

text

#0A1111

muted

#7C8080

Preview Lab

Preview with #21999B

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

Preview Lab → · Contrast checker → · Palette generator →