#21A5C2#21A5C2

#21A5C2 is a light, moderate cyan. Relative luminance 0.311; OKLCH L 66.8% C 0.113 H 217.3°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#21A5C2
RGB	rgb(33, 165, 194)
HSL	hsl(191, 71%, 45%)
HSV	hsv(191, 83%, 76%)
CMYK	cmyk(83%, 14.9%, 0%, 23.9%)
CIE-LAB	lab(62.61, -23.63, -24.49)
CIE-LCH	lch(62.61, 34.03, 226.02°)
OKLab	oklab(66.82% -0.0898 -0.0685)
OKLCH	oklch(66.82% 0.113 217.3)
XYZ	xyz(23.8158, 31.1256, 55.7811)
Luminance	0.3113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A5C2 #C23E21

analogous

#21C28E #21A5C2 #2155C2

triadic

#21A5C2 #C221A5 #A5C221

tetradic

#21A5C2 #8E21C2 #C23E21 #55C221

square

#21A5C2 #8E21C2 #C23E21 #55C221

split-complementary

#21A5C2 #C22155 #C28E21

monochromatic

#0F4C59 #18798E #21A5C2 #41C2DF #76D3E8

Accessibility & contrast

On white

2.91

#21A5C2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#21A5C2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A5C2

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A5C2	#FFFFFF	#000000	##000000
##21A5C2	1.00	2.91	7.23	7.23
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A0C4

Deuteranopia (green-blind)

#7D91C2

Tritanopia (blue-blind)

#00AFAE

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #21a5c2;
/* rgb */ color: rgb(33, 165, 194);
/* oklch */ color: oklch(66.8% 0.113 217.3);

Tailwind

colors: {
  custom: {
    50: '#7ac0d4',
    500: '#21a5c2',
    950: '#000000',
  },
}

SCSS

$custom: #21a5c2;
$custom-light: #7ac0d4;
$custom-dark: #000000;

JSON

{
  "hex": "#21a5c2",
  "rgb": {
    "r": 33,
    "g": 165,
    "b": 194
  },
  "hsl": {
    "h": 190.807,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.6682,
    "c": 0.11295,
    "h": 217.3
  },
  "luminance": 0.31129
}

Semantic roles & 50–950 ramp

primary

#21A5C2

secondary

#CF8170

accent

#5A3AEE

background

#F8FBFD

surface

#EFF7FA

border

#CAD0D3

text

#0B1214

muted

#7C8183

Preview Lab

Preview with #21A5C2

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

Preview Lab → · Contrast checker → · Palette generator →