#42BBB3#42BBB3

#42BBB3 is a light, moderate teal. Relative luminance 0.400; OKLCH L 72.4% C 0.106 H 188.8°. Best body text is #000000 at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#42BBB3
RGB	rgb(66, 187, 179)
HSL	hsl(176, 48%, 50%)
HSV	hsv(176, 65%, 73%)
CMYK	cmyk(64.7%, 0%, 4.3%, 26.7%)
CIE-LAB	lab(69.43, -34.97, -5.83)
CIE-LCH	lch(69.43, 35.45, 189.46°)
OKLab	oklab(72.36% -0.1051 -0.0163)
OKLCH	oklch(72.36% 0.106 188.8)
XYZ	xyz(28.1501, 39.9505, 48.8667)
Luminance	0.3995 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBB3 #BB424A

analogous

#42BB77 #42BBB3 #4287BB

triadic

#42BBB3 #B342BB #BBB342

tetradic

#42BBB3 #7742BB #BB424A #87BB42

square

#42BBB3 #7742BB #BB424A #87BB42

split-complementary

#42BBB3 #BB4287 #BB7742

monochromatic

#22615C #328E88 #42BBB3 #6ECCC6 #9CDCD8

Accessibility & contrast

On white

2.34

#42BBB3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.99

#42BBB3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBB3

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBB3	#FFFFFF	#000000	##000000
##42BBB3	1.00	2.34	8.99	8.99
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.99	21.00	1.00	1.00
##000000	8.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1B1B3

Deuteranopia (green-blind)

#9FA4B4

Tritanopia (blue-blind)

#00C0B8

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42bbb3;
/* rgb */ color: rgb(66, 187, 179);
/* oklch */ color: oklch(72.4% 0.106 188.8);

Tailwind

colors: {
  custom: {
    50: '#86d0c9',
    500: '#42bbb3',
    950: '#000000',
  },
}

SCSS

$custom: #42bbb3;
$custom-light: #86d0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbb3",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 179
  },
  "hsl": {
    "h": 176.033,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.72357,
    "c": 0.10641,
    "h": 188.8
  },
  "luminance": 0.39954
}

Semantic roles & 50–950 ramp

primary

#42BBB3

secondary

#C89194

accent

#5059D7

background

#F8FCFC

surface

#F0F9F8

border

#CBD2D1

text

#0C1413

muted

#7D8282

Preview Lab

Preview with #42BBB3

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

Preview Lab → · Contrast checker → · Palette generator →