#42C2DD#42C2DD

#42C2DD is a light, moderate cyan. Relative luminance 0.450; OKLCH L 75.6% C 0.115 H 214.8°. Best body text is #000000 at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#42C2DD
RGB	rgb(66, 194, 221)
HSL	hsl(190, 70%, 56%)
HSV	hsv(190, 70%, 87%)
CMYK	cmyk(70.1%, 12.2%, 0%, 13.3%)
CIE-LAB	lab(72.86, -26.08, -23.61)
CIE-LCH	lch(72.86, 35.18, 222.15°)
OKLab	oklab(75.58% -0.0946 -0.0658)
OKLCH	oklch(75.58% 0.115 214.8)
XYZ	xyz(34.5842, 44.9583, 75.2477)
Luminance	0.4496 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C2DD #DD5D42

analogous

#42DDAB #42C2DD #4275DD

triadic

#42C2DD #DD42C2 #C2DD42

tetradic

#42C2DD #AB42DD #DD5D42 #75DD42

square

#42C2DD #AB42DD #DD5D42 #75DD42

split-complementary

#42C2DD #DD4275 #DDAB42

monochromatic

#19788C #22A4BF #42C2DD #76D3E6 #AAE3F0

Accessibility & contrast

On white

2.10

#42C2DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.99

#42C2DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C2DD

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C2DD	#FFFFFF	#000000	##000000
##42C2DD	1.00	2.10	9.99	9.99
#FFFFFF	2.10	1.00	21.00	21.00
#000000	9.99	21.00	1.00	1.00
##000000	9.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFBCDF

Deuteranopia (green-blind)

#99ACDD

Tritanopia (blue-blind)

#00CCCA

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #42c2dd;
/* rgb */ color: rgb(66, 194, 221);
/* oklch */ color: oklch(75.6% 0.115 214.8);

Tailwind

colors: {
  custom: {
    50: '#8ad4e7',
    500: '#42c2dd',
    950: '#000000',
  },
}

SCSS

$custom: #42c2dd;
$custom-light: #8ad4e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42c2dd",
  "rgb": {
    "r": 66,
    "g": 194,
    "b": 221
  },
  "hsl": {
    "h": 190.452,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.75575,
    "c": 0.11523,
    "h": 214.8
  },
  "luminance": 0.44962
}

Semantic roles & 50–950 ramp

primary

#42C2DD

secondary

#DDA99D

accent

#5A3BEC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #42C2DD

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

Preview Lab → · Contrast checker → · Palette generator →