#42B3BB#42B3BB

#42B3BB is a light, moderate teal. Relative luminance 0.370; OKLCH L 70.7% C 0.101 H 201.8°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#42B3BB
RGB	rgb(66, 179, 187)
HSL	hsl(184, 48%, 50%)
HSV	hsv(184, 65%, 73%)
CMYK	cmyk(64.7%, 4.3%, 0%, 26.7%)
CIE-LAB	lab(67.26, -28.87, -13.47)
CIE-LCH	lch(67.26, 31.86, 205.01°)
OKLab	oklab(70.68% -0.0933 -0.0373)
OKLCH	oklch(70.68% 0.101 201.8)
XYZ	xyz(27.3326, 36.9833, 52.7021)
Luminance	0.3699 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B3BB #BB4A42

analogous

#42BB87 #42B3BB #4277BB

triadic

#42B3BB #BB42B3 #B3BB42

tetradic

#42B3BB #8742BB #BB4A42 #77BB42

square

#42B3BB #8742BB #BB4A42 #77BB42

split-complementary

#42B3BB #BB4277 #BB8742

monochromatic

#225C61 #32888E #42B3BB #6EC6CC #9CD8DC

Accessibility & contrast

On white

2.50

#42B3BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#42B3BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B3BB

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B3BB	#FFFFFF	#000000	##000000
##42B3BB	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6ACBC

Deuteranopia (green-blind)

#949EBC

Tritanopia (blue-blind)

#00BAB5

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42b3bb;
/* rgb */ color: rgb(66, 179, 187);
/* oklch */ color: oklch(70.7% 0.101 201.8);

Tailwind

colors: {
  custom: {
    50: '#85cacf',
    500: '#42b3bb',
    950: '#000000',
  },
}

SCSS

$custom: #42b3bb;
$custom-light: #85cacf;
$custom-dark: #000000;

JSON

{
  "hex": "#42b3bb",
  "rgb": {
    "r": 66,
    "g": 179,
    "b": 187
  },
  "hsl": {
    "h": 183.967,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.70681,
    "c": 0.10053,
    "h": 201.8
  },
  "luminance": 0.36986
}

Semantic roles & 50–950 ramp

primary

#42B3BB

secondary

#C89491

accent

#5950D7

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42B3BB

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

Preview Lab → · Contrast checker → · Palette generator →