#42ACC3#42ACC3

#42ACC3 is a light, moderate cyan. Relative luminance 0.346; OKLCH L 69.3% C 0.101 H 214.8°. Best body text is #000000 at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#42ACC3
RGB	rgb(66, 172, 195)
HSL	hsl(191, 52%, 51%)
HSV	hsv(191, 66%, 76%)
CMYK	cmyk(66.2%, 11.8%, 0%, 23.5%)
CIE-LAB	lab(65.44, -22.96, -20.67)
CIE-LCH	lch(65.44, 30.90, 221.99°)
OKLab	oklab(69.3% -0.0828 -0.0575)
OKLCH	oklch(69.3% 0.101 214.8)
XYZ	xyz(26.8455, 34.6005, 56.8829)
Luminance	0.3460 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACC3 #C35942

analogous

#42C399 #42ACC3 #426BC3

triadic

#42ACC3 #C342AC #ACC342

tetradic

#42ACC3 #9942C3 #C35942 #6BC342

square

#42ACC3 #9942C3 #C35942 #6BC342

split-complementary

#42ACC3 #C3426B #C39942

monochromatic

#215C69 #308598 #42ACC3 #70C0D2 #9FD5E0

Accessibility & contrast

On white

2.65

#42ACC3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.92

#42ACC3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACC3

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACC3	#FFFFFF	#000000	##000000
##42ACC3	1.00	2.65	7.92	7.92
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.92	21.00	1.00	1.00
##000000	7.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CA7C4

Deuteranopia (green-blind)

#8999C3

Tritanopia (blue-blind)

#00B5B3

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #42acc3;
/* rgb */ color: rgb(66, 172, 195);
/* oklch */ color: oklch(69.3% 0.101 214.8);

Tailwind

colors: {
  custom: {
    50: '#85c5d5',
    500: '#42acc3',
    950: '#000000',
  },
}

SCSS

$custom: #42acc3;
$custom-light: #85c5d5;
$custom-dark: #000000;

JSON

{
  "hex": "#42acc3",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 195
  },
  "hsl": {
    "h": 190.698,
    "s": 51.807,
    "l": 51.176
  },
  "oklch": {
    "l": 0.69297,
    "c": 0.10078,
    "h": 214.8
  },
  "luminance": 0.34603
}

Semantic roles & 50–950 ramp

primary

#42ACC3

secondary

#CD9E94

accent

#664DDB

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42ACC3

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

Preview Lab → · Contrast checker → · Palette generator →