#42B588#42B588

#42B588 is a light, vivid teal. Relative luminance 0.360; OKLCH L 69.6% C 0.124 H 163.7°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#42B588
RGB	rgb(66, 181, 136)
HSL	hsl(157, 47%, 48%)
HSV	hsv(157, 64%, 71%)
CMYK	cmyk(63.5%, 0%, 24.9%, 29%)
CIE-LAB	lab(66.51, -43.09, 13.56)
CIE-LCH	lch(66.51, 45.18, 162.54°)
OKLab	oklab(69.61% -0.1188 0.0346)
OKLCH	oklch(69.61% 0.124 163.7)
XYZ	xyz(23.2122, 35.9811, 29.0095)
Luminance	0.3598 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B588 #B5426F

analogous

#42B54E #42B588 #42A8B5

triadic

#42B588 #8842B5 #B58842

tetradic

#42B588 #4E42B5 #B5426F #A8B542

square

#42B588 #4E42B5 #B5426F #A8B542

split-complementary

#42B588 #B542A8 #B54E42

monochromatic

#215B45 #328866 #42B588 #6BC9A4 #98D9C0

Accessibility & contrast

On white

2.56

#42B588 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#42B588 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B588

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B588	#FFFFFF	#000000	##000000
##42B588	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A886

Deuteranopia (green-blind)

#A29D8B

Tritanopia (blue-blind)

#00B5A9

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42b588;
/* rgb */ color: rgb(66, 181, 136);
/* oklch */ color: oklch(69.6% 0.124 163.7);

Tailwind

colors: {
  custom: {
    50: '#83ccaa',
    500: '#42b588',
    950: '#000000',
  },
}

SCSS

$custom: #42b588;
$custom-light: #83ccaa;
$custom-dark: #000000;

JSON

{
  "hex": "#42b588",
  "rgb": {
    "r": 66,
    "g": 181,
    "b": 136
  },
  "hsl": {
    "h": 156.522,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.69609,
    "c": 0.12371,
    "h": 163.7
  },
  "luminance": 0.35984
}

Semantic roles & 50–950 ramp

primary

#42B588

secondary

#C58EA3

accent

#5285D6

background

#F8FCFA

surface

#F0F9F4

border

#CBD2CE

text

#0C1310

muted

#7D827F

Preview Lab

Preview with #42B588

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

Preview Lab → · Contrast checker → · Palette generator →