#42B8A5#42B8A5

#42B8A5 is a light, moderate teal. Relative luminance 0.382; OKLCH L 71.2% C 0.108 H 180.4°. Best body text is #000000 at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#42B8A5
RGB	rgb(66, 184, 165)
HSL	hsl(170, 47%, 49%)
HSV	hsv(170, 64%, 72%)
CMYK	cmyk(64.1%, 0%, 10.3%, 27.8%)
CIE-LAB	lab(68.13, -37.34, -0.04)
CIE-LCH	lch(68.13, 37.34, 180.06°)
OKLab	oklab(71.17% -0.1083 -0.0007)
OKLCH	oklch(71.17% 0.108 180.4)
XYZ	xyz(26.1756, 38.1530, 41.5748)
Luminance	0.3816 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B8A5 #B84255

analogous

#42B86A #42B8A5 #4290B8

triadic

#42B8A5 #A542B8 #B8A542

tetradic

#42B8A5 #6A42B8 #B84255 #90B842

square

#42B8A5 #6A42B8 #B84255 #90B842

split-complementary

#42B8A5 #B84290 #B86A42

monochromatic

#225E54 #328B7D #42B8A5 #6DCBBB #9ADBD0

Accessibility & contrast

On white

2.43

#42B8A5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.63

#42B8A5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B8A5

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B8A5	#FFFFFF	#000000	##000000
##42B8A5	1.00	2.43	8.63	8.63
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.63	21.00	1.00	1.00
##000000	8.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0ADA4

Deuteranopia (green-blind)

#9FA1A7

Tritanopia (blue-blind)

#00BBB2

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b8a5;
/* rgb */ color: rgb(66, 184, 165);
/* oklch */ color: oklch(71.2% 0.108 180.4);

Tailwind

colors: {
  custom: {
    50: '#84cebf',
    500: '#42b8a5',
    950: '#000000',
  },
}

SCSS

$custom: #42b8a5;
$custom-light: #84cebf;
$custom-dark: #000000;

JSON

{
  "hex": "#42b8a5",
  "rgb": {
    "r": 66,
    "g": 184,
    "b": 165
  },
  "hsl": {
    "h": 170.339,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.7117,
    "c": 0.10835,
    "h": 180.4
  },
  "luminance": 0.38156
}

Semantic roles & 50–950 ramp

primary

#42B8A5

secondary

#C78F98

accent

#5167D7

background

#F8FCFB

surface

#F0F9F7

border

#CBD2D0

text

#0C1312

muted

#7D8281

Preview Lab

Preview with #42B8A5

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

Preview Lab → · Contrast checker → · Palette generator →