#42C5C8#42C5C8

#42C5C8 is a light, moderate teal. Relative luminance 0.453; OKLCH L 75.5% C 0.111 H 197.3°. Best body text is #000000 at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#42C5C8
RGB	rgb(66, 197, 200)
HSL	hsl(181, 55%, 52%)
HSV	hsv(181, 67%, 78%)
CMYK	cmyk(67%, 1.5%, 0%, 21.6%)
CIE-LAB	lab(73.06, -33.77, -11.90)
CIE-LCH	lch(73.06, 35.80, 199.42°)
OKLab	oklab(75.51% -0.1062 -0.033)
OKLCH	oklch(75.51% 0.111 197.3)
XYZ	xyz(32.6337, 45.2572, 61.6480)
Luminance	0.4526 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5C8 #C84542

analogous

#42C888 #42C5C8 #4282C8

triadic

#42C5C8 #C842C5 #C5C842

tetradic

#42C5C8 #8842C8 #C84542 #82C842

square

#42C5C8 #8842C8 #C84542 #82C842

split-complementary

#42C5C8 #C84282 #C88842

monochromatic

#206D6F #2E9C9F #42C5C8 #71D4D6 #A1E2E4

Accessibility & contrast

On white

2.09

#42C5C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.05

#42C5C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5C8

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5C8	#FFFFFF	#000000	##000000
##42C5C8	1.00	2.09	10.05	10.05
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.05	21.00	1.00	1.00
##000000	10.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8BCC8

Deuteranopia (green-blind)

#A4ADC9

Tritanopia (blue-blind)

#00CCC6

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #42c5c8;
/* rgb */ color: rgb(66, 197, 200);
/* oklch */ color: oklch(75.5% 0.111 197.3);

Tailwind

colors: {
  custom: {
    50: '#88d7d8',
    500: '#42c5c8',
    950: '#000000',
  },
}

SCSS

$custom: #42c5c8;
$custom-light: #88d7d8;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5c8",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 200
  },
  "hsl": {
    "h": 181.343,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.75505,
    "c": 0.11124,
    "h": 197.3
  },
  "luminance": 0.45261
}

Semantic roles & 50–950 ramp

primary

#42C5C8

secondary

#D09796

accent

#4D4ADE

background

#F9FDFD

surface

#F1FAFA

border

#CBD3D3

text

#0D1414

muted

#7E8383

Preview Lab

Preview with #42C5C8

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

Preview Lab → · Contrast checker → · Palette generator →