#42C0DE#42C0DE

#42C0DE is a light, moderate cyan. Relative luminance 0.441; OKLCH L 75.1% C 0.116 H 217.1°. Best body text is #000000 at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#42C0DE
RGB	rgb(66, 192, 222)
HSL	hsl(192, 70%, 56%)
HSV	hsv(192, 70%, 87%)
CMYK	cmyk(70.3%, 13.5%, 0%, 12.9%)
CIE-LAB	lab(72.31, -24.77, -24.99)
CIE-LCH	lch(72.31, 35.19, 225.26°)
OKLab	oklab(75.14% -0.0923 -0.0697)
OKLCH	oklch(75.14% 0.116 217.1)
XYZ	xyz(34.2757, 44.1275, 75.8041)
Luminance	0.4413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C0DE #DE6042

analogous

#42DEAE #42C0DE #4272DE

triadic

#42C0DE #DE42C0 #C0DE42

tetradic

#42C0DE #AE42DE #DE6042 #72DE42

square

#42C0DE #AE42DE #DE6042 #72DE42

split-complementary

#42C0DE #DE4272 #DEAE42

monochromatic

#19778D #22A2C1 #42C0DE #76D1E7 #AAE3F0

Accessibility & contrast

On white

2.14

#42C0DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.83

#42C0DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C0DE

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C0DE	#FFFFFF	#000000	##000000
##42C0DE	1.00	2.14	9.83	9.83
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.83	21.00	1.00	1.00
##000000	9.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACBAE0

Deuteranopia (green-blind)

#96AADE

Tritanopia (blue-blind)

#00CBC9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #42c0de;
/* rgb */ color: rgb(66, 192, 222);
/* oklch */ color: oklch(75.1% 0.116 217.1);

Tailwind

colors: {
  custom: {
    50: '#8ad3e8',
    500: '#42c0de',
    950: '#000000',
  },
}

SCSS

$custom: #42c0de;
$custom-light: #8ad3e8;
$custom-dark: #000000;

JSON

{
  "hex": "#42c0de",
  "rgb": {
    "r": 66,
    "g": 192,
    "b": 222
  },
  "hsl": {
    "h": 191.538,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.75144,
    "c": 0.11563,
    "h": 217.1
  },
  "luminance": 0.44131
}

Semantic roles & 50–950 ramp

primary

#42C0DE

secondary

#DEAA9E

accent

#5D3BED

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42C0DE

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

Preview Lab → · Contrast checker → · Palette generator →