#21A3C2#21A3C2

#21A3C2 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 66.3% C 0.113 H 219.0°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#21A3C2
RGB	rgb(33, 163, 194)
HSL	hsl(192, 71%, 45%)
HSV	hsv(192, 83%, 76%)
CMYK	cmyk(83%, 16%, 0%, 23.9%)
CIE-LAB	lab(62.01, -22.60, -25.42)
CIE-LCH	lch(62.01, 34.02, 228.36°)
OKLab	oklab(66.33% -0.0879 -0.0712)
OKLCH	oklch(66.33% 0.113 219)
XYZ	xyz(23.4578, 30.4098, 55.6618)
Luminance	0.3041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A3C2 #C24021

analogous

#21C291 #21A3C2 #2152C2

triadic

#21A3C2 #C221A3 #A3C221

tetradic

#21A3C2 #9121C2 #C24021 #52C221

square

#21A3C2 #9121C2 #C24021 #52C221

split-complementary

#21A3C2 #C22152 #C29121

monochromatic

#0F4B59 #18778E #21A3C2 #41C0DF #76D2E8

Accessibility & contrast

On white

2.97

#21A3C2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.08

#21A3C2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A3C2

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A3C2	#FFFFFF	#000000	##000000
##21A3C2	1.00	2.97	7.08	7.08
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.08	21.00	1.00	1.00
##000000	7.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#909EC4

Deuteranopia (green-blind)

#7B8FC2

Tritanopia (blue-blind)

#00ADAD

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #21a3c2;
/* rgb */ color: rgb(33, 163, 194);
/* oklch */ color: oklch(66.3% 0.113 219.0);

Tailwind

colors: {
  custom: {
    50: '#7abed4',
    500: '#21a3c2',
    950: '#000000',
  },
}

SCSS

$custom: #21a3c2;
$custom-light: #7abed4;
$custom-dark: #000000;

JSON

{
  "hex": "#21a3c2",
  "rgb": {
    "r": 33,
    "g": 163,
    "b": 194
  },
  "hsl": {
    "h": 191.553,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.6633,
    "c": 0.11313,
    "h": 219
  },
  "luminance": 0.30413
}

Semantic roles & 50–950 ramp

primary

#21A3C2

secondary

#CF8270

accent

#5D3AEE

background

#F8FBFD

surface

#EFF7FA

border

#CAD0D3

text

#0B1214

muted

#7C8183

Preview Lab

Preview with #21A3C2

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

Preview Lab → · Contrast checker → · Palette generator →