#21BCA4#21BCA4

#21BCA4 is a light, vivid teal. Relative luminance 0.390; OKLCH L 71.5% C 0.125 H 178.7°. Best body text is #000000 at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#21BCA4
RGB	rgb(33, 188, 164)
HSL	hsl(171, 70%, 43%)
HSV	hsv(171, 82%, 74%)
CMYK	cmyk(82.4%, 0%, 12.8%, 26.3%)
CIE-LAB	lab(68.73, -43.54, 1.30)
CIE-LCH	lch(68.73, 43.55, 178.28°)
OKLab	oklab(71.47% -0.125 0.0028)
OKLCH	oklch(71.47% 0.125 178.7)
XYZ	xyz(25.3078, 38.9669, 41.3023)
Luminance	0.3897 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21BCA4 #BC2139

analogous

#21BC57 #21BCA4 #2186BC

triadic

#21BCA4 #A421BC #BCA421

tetradic

#21BCA4 #5721BC #BC2139 #86BC21

square

#21BCA4 #5721BC #BC2139 #86BC21

split-complementary

#21BCA4 #BC2186 #BC5721

monochromatic

#0F5449 #188877 #21BCA4 #3DDDC4 #71E6D4

Accessibility & contrast

On white

2.39

#21BCA4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.79

#21BCA4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21BCA4

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21BCA4	#FFFFFF	#000000	##000000
##21BCA4	1.00	2.39	8.79	8.79
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.79	21.00	1.00	1.00
##000000	8.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4B0A3

Deuteranopia (green-blind)

#A0A2A6

Tritanopia (blue-blind)

#00BFB5

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #21bca4;
/* rgb */ color: rgb(33, 188, 164);
/* oklch */ color: oklch(71.5% 0.125 178.7);

Tailwind

colors: {
  custom: {
    50: '#7ad1be',
    500: '#21bca4',
    950: '#000000',
  },
}

SCSS

$custom: #21bca4;
$custom-light: #7ad1be;
$custom-dark: #000000;

JSON

{
  "hex": "#21bca4",
  "rgb": {
    "r": 33,
    "g": 188,
    "b": 164
  },
  "hsl": {
    "h": 170.71,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.71471,
    "c": 0.12506,
    "h": 178.7
  },
  "luminance": 0.3897
}

Semantic roles & 50–950 ramp

primary

#21BCA4

secondary

#CD6C7B

accent

#3B56ED

background

#F8FCFB

surface

#EFF9F6

border

#CAD2D0

text

#0B1412

muted

#7C8281

Preview Lab

Preview with #21BCA4

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

Preview Lab → · Contrast checker → · Palette generator →