#42D9CC#42D9CC

#42D9CC is a light, vivid teal. Relative luminance 0.551; OKLCH L 80.5% C 0.125 H 186.6°. Best body text is #000000 at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#42D9CC
RGB	rgb(66, 217, 204)
HSL	hsl(175, 67%, 55%)
HSV	hsv(175, 70%, 85%)
CMYK	cmyk(69.6%, 0%, 6%, 14.9%)
CIE-LAB	lab(79.12, -41.81, -5.05)
CIE-LCH	lch(79.12, 42.12, 186.89°)
OKLab	oklab(80.46% -0.1244 -0.0143)
OKLCH	oklch(80.46% 0.125 186.6)
XYZ	xyz(37.9536, 55.1392, 65.7577)
Luminance	0.5514 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D9CC #D9424F

analogous

#42D980 #42D9CC #429BD9

triadic

#42D9CC #CC42D9 #D9CC42

tetradic

#42D9CC #8042D9 #D9424F #9BD942

square

#42D9CC #8042D9 #D9424F #9BD942

split-complementary

#42D9CC #D9429B #D98042

monochromatic

#1B867D #25B9AC #42D9CC #75E3DA #A8EDE7

Accessibility & contrast

On white

1.75

#42D9CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.03

#42D9CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D9CC

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D9CC	#FFFFFF	#000000	##000000
##42D9CC	1.00	1.75	12.03	12.03
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.03	21.00	1.00	1.00
##000000	12.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CECDCC

Deuteranopia (green-blind)

#B8BDCE

Tritanopia (blue-blind)

#00DED5

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #42d9cc;
/* rgb */ color: rgb(66, 217, 204);
/* oklch */ color: oklch(80.5% 0.125 186.6);

Tailwind

colors: {
  custom: {
    50: '#8be5db',
    500: '#42d9cc',
    950: '#000000',
  },
}

SCSS

$custom: #42d9cc;
$custom-light: #8be5db;
$custom-dark: #000000;

JSON

{
  "hex": "#42d9cc",
  "rgb": {
    "r": 66,
    "g": 217,
    "b": 204
  },
  "hsl": {
    "h": 174.834,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.80464,
    "c": 0.12521,
    "h": 186.6
  },
  "luminance": 0.55144
}

Semantic roles & 50–950 ramp

primary

#42D9CC

secondary

#8C333B

accent

#3E4DE9

background

#FCFEFE

surface

#F5FCFB

border

#CFD5D4

text

#0E1615

muted

#7F8484

Preview Lab

Preview with #42D9CC

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

Preview Lab → · Contrast checker → · Palette generator →