#42C5B2#42C5B2

#42C5B2 is a light, moderate teal. Relative luminance 0.443; OKLCH L 74.8% C 0.116 H 181.5°. Best body text is #000000 at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#42C5B2
RGB	rgb(66, 197, 178)
HSL	hsl(171, 53%, 52%)
HSV	hsv(171, 66%, 77%)
CMYK	cmyk(66.5%, 0%, 9.6%, 22.7%)
CIE-LAB	lab(72.43, -39.81, -0.87)
CIE-LCH	lch(72.43, 39.81, 181.25°)
OKLab	oklab(74.78% -0.1159 -0.003)
OKLCH	oklch(74.78% 0.116 181.5)
XYZ	xyz(30.2451, 44.3017, 49.0680)
Luminance	0.4430 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5B2 #C54255

analogous

#42C571 #42C5B2 #4297C5

triadic

#42C5B2 #B242C5 #C5B242

tetradic

#42C5B2 #7142C5 #C54255 #97C542

square

#42C5B2 #7142C5 #C54255 #97C542

split-complementary

#42C5B2 #C54297 #C57142

monochromatic

#216C61 #2F9A8B #42C5B2 #71D3C5 #A0E2D8

Accessibility & contrast

On white

2.13

#42C5B2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.86

#42C5B2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5B2

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5B2	#FFFFFF	#000000	##000000
##42C5B2	1.00	2.13	9.86	9.86
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.86	21.00	1.00	1.00
##000000	9.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCBAB1

Deuteranopia (green-blind)

#A9ACB4

Tritanopia (blue-blind)

#00C9BF

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #42c5b2;
/* rgb */ color: rgb(66, 197, 178);
/* oklch */ color: oklch(74.8% 0.116 181.5);

Tailwind

colors: {
  custom: {
    50: '#87d7c9',
    500: '#42c5b2',
    950: '#000000',
  },
}

SCSS

$custom: #42c5b2;
$custom-light: #87d7c9;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5b2",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 178
  },
  "hsl": {
    "h": 171.298,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.74783,
    "c": 0.11597,
    "h": 181.5
  },
  "luminance": 0.44305
}

Semantic roles & 50–950 ramp

primary

#42C5B2

secondary

#CE959D

accent

#4B60DC

background

#F8FDFC

surface

#F0FAF8

border

#CBD3D1

text

#0D1413

muted

#7D8382

Preview Lab

Preview with #42C5B2

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

Preview Lab → · Contrast checker → · Palette generator →