#42C0DA#42C0DA

#42C0DA is a light, moderate cyan. Relative luminance 0.439; OKLCH L 75.0% C 0.114 H 214.4°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#42C0DA
RGB	rgb(66, 192, 218)
HSL	hsl(190, 67%, 56%)
HSV	hsv(190, 70%, 85%)
CMYK	cmyk(69.7%, 11.9%, 0%, 14.5%)
CIE-LAB	lab(72.17, -26.00, -23.04)
CIE-LCH	lch(72.17, 34.74, 221.54°)
OKLab	oklab(74.98% -0.0938 -0.0641)
OKLCH	oklch(74.98% 0.114 214.4)
XYZ	xyz(33.7460, 43.9156, 73.0141)
Luminance	0.4392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C0DA #DA5C42

analogous

#42DAA8 #42C0DA #4274DA

triadic

#42C0DA #DA42C0 #C0DA42

tetradic

#42C0DA #A842DA #DA5C42 #74DA42

square

#42C0DA #A842DA #DA5C42 #74DA42

split-complementary

#42C0DA #DA4274 #DAA842

monochromatic

#1A7587 #24A1BA #42C0DA #75D1E4 #A8E2EE

Accessibility & contrast

On white

2.15

#42C0DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#42C0DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C0DA

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C0DA	#FFFFFF	#000000	##000000
##42C0DA	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBADB

Deuteranopia (green-blind)

#98AADA

Tritanopia (blue-blind)

#00CAC8

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #42c0da;
/* rgb */ color: rgb(66, 192, 218);
/* oklch */ color: oklch(75.0% 0.114 214.4);

Tailwind

colors: {
  custom: {
    50: '#8ad3e5',
    500: '#42c0da',
    950: '#000000',
  },
}

SCSS

$custom: #42c0da;
$custom-light: #8ad3e5;
$custom-dark: #000000;

JSON

{
  "hex": "#42c0da",
  "rgb": {
    "r": 66,
    "g": 192,
    "b": 218
  },
  "hsl": {
    "h": 190.263,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74983,
    "c": 0.11366,
    "h": 214.4
  },
  "luminance": 0.43919
}

Semantic roles & 50–950 ramp

primary

#42C0DA

secondary

#DBA79C

accent

#5B3EEA

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1415

muted

#7E8284

Preview Lab

Preview with #42C0DA

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

Preview Lab → · Contrast checker → · Palette generator →