#21A3BD#21A3BD

#21A3BD is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.1% C 0.110 H 215.5°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#21A3BD
RGB	rgb(33, 163, 189)
HSL	hsl(190, 70%, 44%)
HSV	hsv(190, 83%, 74%)
CMYK	cmyk(82.5%, 13.8%, 0%, 25.9%)
CIE-LAB	lab(61.82, -24.27, -22.92)
CIE-LCH	lch(61.82, 33.38, 223.36°)
OKLab	oklab(66.11% -0.0899 -0.064)
OKLCH	oklch(66.11% 0.11 215.5)
XYZ	xyz(22.9057, 30.1889, 52.7540)
Luminance	0.3019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A3BD #BD3B21

analogous

#21BD89 #21A3BD #2155BD

triadic

#21A3BD #BD21A3 #A3BD21

tetradic

#21A3BD #8921BD #BD3B21 #55BD21

square

#21A3BD #8921BD #BD3B21 #55BD21

split-complementary

#21A3BD #BD2155 #BD8921

monochromatic

#0F4955 #187689 #21A3BD #3EC3DD #72D3E6

Accessibility & contrast

On white

2.98

#21A3BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#21A3BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A3BD

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A3BD	#FFFFFF	#000000	##000000
##21A3BD	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919EBE

Deuteranopia (green-blind)

#7D8FBD

Tritanopia (blue-blind)

#00ACAB

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #21a3bd;
/* rgb */ color: rgb(33, 163, 189);
/* oklch */ color: oklch(66.1% 0.110 215.5);

Tailwind

colors: {
  custom: {
    50: '#79bed1',
    500: '#21a3bd',
    950: '#000000',
  },
}

SCSS

$custom: #21a3bd;
$custom-light: #79bed1;
$custom-dark: #000000;

JSON

{
  "hex": "#21a3bd",
  "rgb": {
    "r": 33,
    "g": 163,
    "b": 189
  },
  "hsl": {
    "h": 190,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.66115,
    "c": 0.11039,
    "h": 215.5
  },
  "luminance": 0.30192
}

Semantic roles & 50–950 ramp

primary

#21A3BD

secondary

#CD7D6D

accent

#583BED

background

#F8FBFC

surface

#EFF7F9

border

#CAD0D2

text

#0B1214

muted

#7C8182

Preview Lab

Preview with #21A3BD

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

Preview Lab → · Contrast checker → · Palette generator →