#42D5BF#42D5BF

#42D5BF is a light, vivid teal. Relative luminance 0.525; OKLCH L 79.1% C 0.126 H 180.8°. Best body text is #000000 at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#42D5BF
RGB	rgb(66, 213, 191)
HSL	hsl(171, 64%, 55%)
HSV	hsv(171, 69%, 84%)
CMYK	cmyk(69%, 0%, 10.3%, 16.5%)
CIE-LAB	lab(77.58, -43.49, -0.36)
CIE-LCH	lch(77.58, 43.49, 180.47°)
OKLab	oklab(79.09% -0.1262 -0.0017)
OKLCH	oklch(79.09% 0.126 180.8)
XYZ	xyz(35.4404, 52.5043, 57.5466)
Luminance	0.5251 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D5BF #D54258

analogous

#42D575 #42D5BF #42A2D5

triadic

#42D5BF #BF42D5 #D5BF42

tetradic

#42D5BF #7542D5 #D54258 #A2D542

square

#42D5BF #7542D5 #D54258 #A2D542

split-complementary

#42D5BF #D542A2 #D57542

monochromatic

#1C8071 #28B29D #42D5BF #74E0D0 #A6EBE1

Accessibility & contrast

On white

1.83

#42D5BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.50

#42D5BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5BF

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D5BF	#FFFFFF	#000000	##000000
##42D5BF	1.00	1.83	11.50	11.50
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.50	21.00	1.00	1.00
##000000	11.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCC9BE

Deuteranopia (green-blind)

#B7B9C1

Tritanopia (blue-blind)

#00D9CE

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #42d5bf;
/* rgb */ color: rgb(66, 213, 191);
/* oklch */ color: oklch(79.1% 0.126 180.8);

Tailwind

colors: {
  custom: {
    50: '#8ae2d2',
    500: '#42d5bf',
    950: '#000000',
  },
}

SCSS

$custom: #42d5bf;
$custom-light: #8ae2d2;
$custom-dark: #000000;

JSON

{
  "hex": "#42d5bf",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 191
  },
  "hsl": {
    "h": 171.02,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.79094,
    "c": 0.12622,
    "h": 180.8
  },
  "luminance": 0.52508
}

Semantic roles & 50–950 ramp

primary

#42D5BF

secondary

#873440

accent

#415AE7

background

#FCFEFE

surface

#F4FCFB

border

#CED5D4

text

#0D1514

muted

#7F8483

Preview Lab

Preview with #42D5BF

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

Preview Lab → · Contrast checker → · Palette generator →