#42D5CF#42D5CF

#42D5CF is a light, vivid teal. Relative luminance 0.533; OKLCH L 79.6% C 0.121 H 191.0°. Best body text is #000000 at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#42D5CF
RGB	rgb(66, 213, 207)
HSL	hsl(178, 64%, 55%)
HSV	hsv(178, 69%, 84%)
CMYK	cmyk(69%, 0%, 2.8%, 16.5%)
CIE-LAB	lab(78.02, -39.20, -8.29)
CIE-LCH	lch(78.02, 40.07, 191.94°)
OKLab	oklab(79.6% -0.1191 -0.0231)
OKLCH	oklch(79.6% 0.121 191)
XYZ	xyz(37.2983, 53.2474, 67.3314)
Luminance	0.5325 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D5CF #D54248

analogous

#42D586 #42D5CF #4292D5

triadic

#42D5CF #CF42D5 #D5CF42

tetradic

#42D5CF #8642D5 #D54248 #92D542

square

#42D5CF #8642D5 #D54248 #92D542

split-complementary

#42D5CF #D54292 #D58642

monochromatic

#1C807C #28B2AD #42D5CF #74E0DC #A6EBE8

Accessibility & contrast

On white

1.80

#42D5CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.65

#42D5CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5CF

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D5CF	#FFFFFF	#000000	##000000
##42D5CF	1.00	1.80	11.65	11.65
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.65	21.00	1.00	1.00
##000000	11.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9CACF

Deuteranopia (green-blind)

#B3BAD0

Tritanopia (blue-blind)

#00DBD3

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #42d5cf;
/* rgb */ color: rgb(66, 213, 207);
/* oklch */ color: oklch(79.6% 0.121 191.0);

Tailwind

colors: {
  custom: {
    50: '#8be2dd',
    500: '#42d5cf',
    950: '#000000',
  },
}

SCSS

$custom: #42d5cf;
$custom-light: #8be2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#42d5cf",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 207
  },
  "hsl": {
    "h": 177.551,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.79597,
    "c": 0.12137,
    "h": 191
  },
  "luminance": 0.53252
}

Semantic roles & 50–950 ramp

primary

#42D5CF

secondary

#873437

accent

#4148E7

background

#FCFEFE

surface

#F4FCFC

border

#CED5D5

text

#0D1515

muted

#7F8484

Preview Lab

Preview with #42D5CF

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

Preview Lab → · Contrast checker → · Palette generator →