#42D5D8#42D5D8

#42D5D8 is a light, vivid teal. Relative luminance 0.537; OKLCH L 79.9% C 0.121 H 197.0°. Best body text is #000000 at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#42D5D8
RGB	rgb(66, 213, 216)
HSL	hsl(181, 66%, 55%)
HSV	hsv(181, 69%, 85%)
CMYK	cmyk(69.4%, 1.4%, 0%, 15.3%)
CIE-LAB	lab(78.29, -36.68, -12.72)
CIE-LCH	lch(78.29, 38.82, 199.12°)
OKLab	oklab(79.9% -0.1153 -0.0353)
OKLCH	oklch(79.9% 0.121 197)
XYZ	xyz(38.4301, 53.7001, 73.2922)
Luminance	0.5371 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D5D8 #D84542

analogous

#42D890 #42D5D8 #428AD8

triadic

#42D5D8 #D842D5 #D5D842

tetradic

#42D5D8 #9042D8 #D84542 #8AD842

square

#42D5D8 #9042D8 #D84542 #8AD842

split-complementary

#42D5D8 #D8428A #D89042

monochromatic

#1B8284 #26B4B7 #42D5D8 #75E0E2 #A7ECED

Accessibility & contrast

On white

1.79

#42D5D8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.74

#42D5D8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5D8

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D5D8	#FFFFFF	#000000	##000000
##42D5D8	1.00	1.79	11.74	11.74
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.74	21.00	1.00	1.00
##000000	11.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7CBD8

Deuteranopia (green-blind)

#B0BBD9

Tritanopia (blue-blind)

#00DCD6

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #42d5d8;
/* rgb */ color: rgb(66, 213, 216);
/* oklch */ color: oklch(79.9% 0.121 197.0);

Tailwind

colors: {
  custom: {
    50: '#8ce2e4',
    500: '#42d5d8',
    950: '#000000',
  },
}

SCSS

$custom: #42d5d8;
$custom-light: #8ce2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#42d5d8",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 216
  },
  "hsl": {
    "h": 181.2,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.79901,
    "c": 0.12057,
    "h": 197
  },
  "luminance": 0.53705
}

Semantic roles & 50–950 ramp

primary

#42D5D8

secondary

#8B3533

accent

#423FE9

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #42D5D8

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

Preview Lab → · Contrast checker → · Palette generator →