#42C9CF#42C9CF

#42C9CF is a light, moderate teal. Relative luminance 0.474; OKLCH L 76.7% C 0.114 H 199.4°. Best body text is #000000 at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#42C9CF
RGB	rgb(66, 201, 207)
HSL	hsl(183, 59%, 54%)
HSV	hsv(183, 68%, 81%)
CMYK	cmyk(68.1%, 2.9%, 0%, 18.8%)
CIE-LAB	lab(74.47, -33.65, -13.60)
CIE-LCH	lch(74.47, 36.29, 202.00°)
OKLab	oklab(76.71% -0.1072 -0.0377)
OKLCH	oklch(76.71% 0.114 199.4)
XYZ	xyz(34.3909, 47.4326, 66.3623)
Luminance	0.4744 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C9CF #CF4842

analogous

#42CF8E #42C9CF #4282CF

triadic

#42C9CF #CF42C9 #C9CF42

tetradic

#42C9CF #8E42CF #CF4842 #82CF42

square

#42C9CF #8E42CF #CF4842 #82CF42

split-complementary

#42C9CF #CF4282 #CF8E42

monochromatic

#1F7478 #2BA4A9 #42C9CF #73D7DB #A4E5E8

Accessibility & contrast

On white

2.00

#42C9CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.49

#42C9CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C9CF

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C9CF	#FFFFFF	#000000	##000000
##42C9CF	1.00	2.00	10.49	10.49
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.49	21.00	1.00	1.00
##000000	10.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC0D0

Deuteranopia (green-blind)

#A6B1D0

Tritanopia (blue-blind)

#00D0CA

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #42c9cf;
/* rgb */ color: rgb(66, 201, 207);
/* oklch */ color: oklch(76.7% 0.114 199.4);

Tailwind

colors: {
  custom: {
    50: '#8adadd',
    500: '#42c9cf',
    950: '#000000',
  },
}

SCSS

$custom: #42c9cf;
$custom-light: #8adadd;
$custom-dark: #000000;

JSON

{
  "hex": "#42c9cf",
  "rgb": {
    "r": 66,
    "g": 201,
    "b": 207
  },
  "hsl": {
    "h": 182.553,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.76714,
    "c": 0.11369,
    "h": 199.4
  },
  "luminance": 0.47437
}

Semantic roles & 50–950 ramp

primary

#42C9CF

secondary

#D59B98

accent

#4C45E3

background

#F9FDFD

surface

#F1FAFB

border

#CBD3D4

text

#0D1515

muted

#7E8383

Preview Lab

Preview with #42C9CF

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

Preview Lab → · Contrast checker → · Palette generator →