#42D5B2#42D5B2

#42D5B2 is a light, vivid teal. Relative luminance 0.520; OKLCH L 78.7% C 0.133 H 173.3°. Best body text is #000000 at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#42D5B2
RGB	rgb(66, 213, 178)
HSL	hsl(166, 64%, 55%)
HSV	hsv(166, 69%, 84%)
CMYK	cmyk(69%, 0%, 16.4%, 16.5%)
CIE-LAB	lab(77.26, -46.77, 6.13)
CIE-LCH	lch(77.26, 47.17, 172.53°)
OKLab	oklab(78.72% -0.1321 0.0155)
OKLCH	oklch(78.72% 0.133 173.3)
XYZ	xyz(34.0728, 51.9572, 50.3439)
Luminance	0.5196 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D5B2 #D54265

analogous

#42D568 #42D5B2 #42AFD5

triadic

#42D5B2 #B242D5 #D5B242

tetradic

#42D5B2 #6842D5 #D54265 #AFD542

square

#42D5B2 #6842D5 #D54265 #AFD542

split-complementary

#42D5B2 #D542AF #D56842

monochromatic

#1C8068 #28B291 #42D5B2 #74E0C6 #A6EBDB

Accessibility & contrast

On white

1.84

#42D5B2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.39

#42D5B2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5B2

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D5B2	#FFFFFF	#000000	##000000
##42D5B2	1.00	1.84	11.39	11.39
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.39	21.00	1.00	1.00
##000000	11.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEC7B0

Deuteranopia (green-blind)

#BAB9B5

Tritanopia (blue-blind)

#00D7CB

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #42d5b2;
/* rgb */ color: rgb(66, 213, 178);
/* oklch */ color: oklch(78.7% 0.133 173.3);

Tailwind

colors: {
  custom: {
    50: '#89e3c9',
    500: '#42d5b2',
    950: '#000000',
  },
}

SCSS

$custom: #42d5b2;
$custom-light: #89e3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#42d5b2",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 178
  },
  "hsl": {
    "h": 165.714,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.78719,
    "c": 0.13303,
    "h": 173.3
  },
  "luminance": 0.51961
}

Semantic roles & 50–950 ramp

primary

#42D5B2

secondary

#873448

accent

#4169E7

background

#FCFEFD

surface

#F4FCF9

border

#CED5D2

text

#0D1513

muted

#7F8482

Preview Lab

Preview with #42D5B2

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

Preview Lab → · Contrast checker → · Palette generator →