#42C5BB#42C5BB

#42C5BB is a light, moderate teal. Relative luminance 0.447; OKLCH L 75.1% C 0.113 H 187.7°. Best body text is #000000 at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#42C5BB
RGB	rgb(66, 197, 187)
HSL	hsl(175, 53%, 52%)
HSV	hsv(175, 66%, 77%)
CMYK	cmyk(66.5%, 0%, 5.1%, 22.7%)
CIE-LAB	lab(72.68, -37.40, -5.40)
CIE-LCH	lch(72.68, 37.79, 188.22°)
OKLab	oklab(75.07% -0.1119 -0.0152)
OKLCH	oklch(75.07% 0.113 187.7)
XYZ	xyz(31.1785, 44.6751, 53.9840)
Luminance	0.4468 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5BB #C5424C

analogous

#42C57A #42C5BB #428EC5

triadic

#42C5BB #BB42C5 #C5BB42

tetradic

#42C5BB #7A42C5 #C5424C #8EC542

square

#42C5BB #7A42C5 #C5424C #8EC542

split-complementary

#42C5BB #C5428E #C57A42

monochromatic

#216C66 #2F9A92 #42C5BB #71D3CC #A0E2DD

Accessibility & contrast

On white

2.11

#42C5BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.94

#42C5BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5BB

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5BB	#FFFFFF	#000000	##000000
##42C5BB	1.00	2.11	9.94	9.94
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.94	21.00	1.00	1.00
##000000	9.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBBBBB

Deuteranopia (green-blind)

#A7ACBC

Tritanopia (blue-blind)

#00CAC2

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #42c5bb;
/* rgb */ color: rgb(66, 197, 187);
/* oklch */ color: oklch(75.1% 0.113 187.7);

Tailwind

colors: {
  custom: {
    50: '#87d7cf',
    500: '#42c5bb',
    950: '#000000',
  },
}

SCSS

$custom: #42c5bb;
$custom-light: #87d7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5bb",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 187
  },
  "hsl": {
    "h": 175.42,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.75066,
    "c": 0.11292,
    "h": 187.7
  },
  "luminance": 0.44679
}

Semantic roles & 50–950 ramp

primary

#42C5BB

secondary

#CE9599

accent

#4B56DC

background

#F9FDFC

surface

#F1FAF9

border

#CBD3D2

text

#0D1413

muted

#7E8382

Preview Lab

Preview with #42C5BB

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

Preview Lab → · Contrast checker → · Palette generator →