#42B0B3#42B0B3

#42B0B3 is a light, moderate teal. Relative luminance 0.355; OKLCH L 69.7% C 0.098 H 197.7°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#42B0B3
RGB	rgb(66, 176, 179)
HSL	hsl(182, 46%, 48%)
HSV	hsv(182, 63%, 70%)
CMYK	cmyk(63.1%, 1.7%, 0%, 29.8%)
CIE-LAB	lab(66.11, -29.72, -10.78)
CIE-LCH	lch(66.11, 31.62, 199.93°)
OKLab	oklab(69.66% -0.0936 -0.0299)
OKLCH	oklch(69.66% 0.098 197.7)
XYZ	xyz(25.9052, 35.4608, 48.1185)
Luminance	0.3546 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B0B3 #B34542

analogous

#42B37D #42B0B3 #4277B3

triadic

#42B0B3 #B342B0 #B0B342

tetradic

#42B0B3 #7D42B3 #B34542 #77B342

square

#42B0B3 #7D42B3 #B34542 #77B342

split-complementary

#42B0B3 #B34277 #B37D42

monochromatic

#21585A #328486 #42B0B3 #6AC6C8 #97D7D9

Accessibility & contrast

On white

2.59

#42B0B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#42B0B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0B3

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B0B3	#FFFFFF	#000000	##000000
##42B0B3	1.00	2.59	8.09	8.09
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4A8B3

Deuteranopia (green-blind)

#939BB4

Tritanopia (blue-blind)

#00B6B1

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #42b0b3;
/* rgb */ color: rgb(66, 176, 179);
/* oklch */ color: oklch(69.7% 0.098 197.7);

Tailwind

colors: {
  custom: {
    50: '#84c8c9',
    500: '#42b0b3',
    950: '#000000',
  },
}

SCSS

$custom: #42b0b3;
$custom-light: #84c8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#42b0b3",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 179
  },
  "hsl": {
    "h": 181.593,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6966,
    "c": 0.09828,
    "h": 197.7
  },
  "luminance": 0.35464
}

Semantic roles & 50–950 ramp

primary

#42B0B3

secondary

#C48E8C

accent

#5652D6

background

#F8FCFC

surface

#F0F8F8

border

#CBD1D1

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42B0B3

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

Preview Lab → · Contrast checker → · Palette generator →