#42C0DC#42C0DC

#42C0DC is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.1% C 0.115 H 215.7°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#42C0DC
RGB	rgb(66, 192, 220)
HSL	hsl(191, 69%, 56%)
HSV	hsv(191, 70%, 86%)
CMYK	cmyk(70%, 12.7%, 0%, 13.7%)
CIE-LAB	lab(72.24, -25.39, -24.02)
CIE-LCH	lch(72.24, 34.95, 223.41°)
OKLab	oklab(75.06% -0.093 -0.0669)
OKLCH	oklch(75.06% 0.115 215.7)
XYZ	xyz(34.0092, 44.0209, 74.4008)
Luminance	0.4402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C0DC #DC5E42

analogous

#42DCAB #42C0DC #4273DC

triadic

#42C0DC #DC42C0 #C0DC42

tetradic

#42C0DC #AB42DC #DC5E42 #73DC42

square

#42C0DC #AB42DC #DC5E42 #73DC42

split-complementary

#42C0DC #DC4273 #DCAB42

monochromatic

#1A768A #23A2BE #42C0DC #76D1E6 #A9E2EF

Accessibility & contrast

On white

2.14

#42C0DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#42C0DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C0DC

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C0DC	#FFFFFF	#000000	##000000
##42C0DC	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBADE

Deuteranopia (green-blind)

#97AADC

Tritanopia (blue-blind)

#00CAC9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #42c0dc;
/* rgb */ color: rgb(66, 192, 220);
/* oklch */ color: oklch(75.1% 0.115 215.7);

Tailwind

colors: {
  custom: {
    50: '#8ad3e7',
    500: '#42c0dc',
    950: '#000000',
  },
}

SCSS

$custom: #42c0dc;
$custom-light: #8ad3e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42c0dc",
  "rgb": {
    "r": 66,
    "g": 192,
    "b": 220
  },
  "hsl": {
    "h": 190.909,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.75063,
    "c": 0.11461,
    "h": 215.7
  },
  "luminance": 0.44025
}

Semantic roles & 50–950 ramp

primary

#42C0DC

secondary

#DDA99D

accent

#5C3CEC

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42C0DC

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

Preview Lab → · Contrast checker → · Palette generator →