#42B9B2#42B9B2

#42B9B2 is a light, moderate teal. Relative luminance 0.391; OKLCH L 71.8% C 0.105 H 189.5°. Best body text is #000000 at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#42B9B2
RGB	rgb(66, 185, 178)
HSL	hsl(176, 47%, 49%)
HSV	hsv(176, 64%, 73%)
CMYK	cmyk(64.3%, 0%, 3.8%, 27.5%)
CIE-LAB	lab(68.80, -34.31, -6.21)
CIE-LCH	lch(68.80, 34.86, 190.27°)
OKLab	oklab(71.83% -0.1035 -0.0174)
OKLCH	oklch(71.83% 0.105 189.5)
XYZ	xyz(27.6280, 39.0675, 48.1956)
Luminance	0.3907 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B9B2 #B94249

analogous

#42B977 #42B9B2 #4284B9

triadic

#42B9B2 #B242B9 #B9B242

tetradic

#42B9B2 #7742B9 #B94249 #84B942

square

#42B9B2 #7742B9 #B94249 #84B942

split-complementary

#42B9B2 #B94284 #B97742

monochromatic

#225F5B #328C87 #42B9B2 #6DCBC5 #9ADBD7

Accessibility & contrast

On white

2.38

#42B9B2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.81

#42B9B2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B9B2

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B9B2	#FFFFFF	#000000	##000000
##42B9B2	1.00	2.38	8.81	8.81
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.81	21.00	1.00	1.00
##000000	8.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFB0B2

Deuteranopia (green-blind)

#9DA2B3

Tritanopia (blue-blind)

#00BEB7

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #42b9b2;
/* rgb */ color: rgb(66, 185, 178);
/* oklch */ color: oklch(71.8% 0.105 189.5);

Tailwind

colors: {
  custom: {
    50: '#85cec9',
    500: '#42b9b2',
    950: '#000000',
  },
}

SCSS

$custom: #42b9b2;
$custom-light: #85cec9;
$custom-dark: #000000;

JSON

{
  "hex": "#42b9b2",
  "rgb": {
    "r": 66,
    "g": 185,
    "b": 178
  },
  "hsl": {
    "h": 176.471,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.71833,
    "c": 0.10497,
    "h": 189.5
  },
  "luminance": 0.39071
}

Semantic roles & 50–950 ramp

primary

#42B9B2

secondary

#C79093

accent

#5159D7

background

#F8FCFC

surface

#F0F9F8

border

#CBD2D1

text

#0C1413

muted

#7D8282

Preview Lab

Preview with #42B9B2

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

Preview Lab → · Contrast checker → · Palette generator →