#42D5DC#42D5DC

#42D5DC is a light, vivid teal. Relative luminance 0.539; OKLCH L 80.0% C 0.121 H 199.7°. Best body text is #000000 at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#42D5DC
RGB	rgb(66, 213, 220)
HSL	hsl(183, 69%, 56%)
HSV	hsv(183, 70%, 86%)
CMYK	cmyk(70%, 3.2%, 0%, 13.7%)
CIE-LAB	lab(78.41, -35.54, -14.68)
CIE-LCH	lch(78.41, 38.45, 202.44°)
OKLab	oklab(80.04% -0.1136 -0.0407)
OKLCH	oklch(80.04% 0.121 199.7)
XYZ	xyz(38.9535, 53.9095, 76.0489)
Luminance	0.5391 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D5DC #DC4942

analogous

#42DC96 #42D5DC #4288DC

triadic

#42D5DC #DC42D5 #D5DC42

tetradic

#42D5DC #9642DC #DC4942 #88DC42

square

#42D5DC #9642DC #DC4942 #88DC42

split-complementary

#42D5DC #DC4288 #DC9642

monochromatic

#1A858A #23B7BE #42D5DC #76E0E6 #A9ECEF

Accessibility & contrast

On white

1.78

#42D5DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.78

#42D5DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5DC

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D5DC	#FFFFFF	#000000	##000000
##42D5DC	1.00	1.78	11.78	11.78
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.78	21.00	1.00	1.00
##000000	11.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6CBDD

Deuteranopia (green-blind)

#AFBBDD

Tritanopia (blue-blind)

#00DDD7

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #42d5dc;
/* rgb */ color: rgb(66, 213, 220);
/* oklch */ color: oklch(80.0% 0.121 199.7);

Tailwind

colors: {
  custom: {
    50: '#8ce2e6',
    500: '#42d5dc',
    950: '#000000',
  },
}

SCSS

$custom: #42d5dc;
$custom-light: #8ce2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42d5dc",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 220
  },
  "hsl": {
    "h": 182.727,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.8004,
    "c": 0.12068,
    "h": 199.7
  },
  "luminance": 0.53914
}

Semantic roles & 50–950 ramp

primary

#42D5DC

secondary

#903732

accent

#443CEC

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #42D5DC

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

Preview Lab → · Contrast checker → · Palette generator →