#42C8CC#42C8CC

#42C8CC is a light, moderate teal. Relative luminance 0.468; OKLCH L 76.4% C 0.113 H 198.0°. Best body text is #000000 at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#42C8CC
RGB	rgb(66, 200, 204)
HSL	hsl(182, 58%, 53%)
HSV	hsv(182, 68%, 80%)
CMYK	cmyk(67.6%, 2%, 0%, 20%)
CIE-LAB	lab(74.08, -34.04, -12.55)
CIE-LCH	lch(74.08, 36.28, 200.25°)
OKLab	oklab(76.37% -0.1075 -0.0348)
OKLCH	oklch(76.37% 0.113 198)
XYZ	xyz(33.7953, 46.8226, 64.3716)
Luminance	0.4683 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C8CC #CC4642

analogous

#42CC8B #42C8CC #4283CC

triadic

#42C8CC #CC42C8 #C8CC42

tetradic

#42C8CC #8B42CC #CC4642 #83CC42

square

#42C8CC #8B42CC #CC4642 #83CC42

split-complementary

#42C8CC #CC4283 #CC8B42

monochromatic

#1F7274 #2CA1A4 #42C8CC #72D6D9 #A2E4E6

Accessibility & contrast

On white

2.03

#42C8CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.37

#42C8CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C8CC

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C8CC	#FFFFFF	#000000	##000000
##42C8CC	1.00	2.03	10.37	10.37
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.37	21.00	1.00	1.00
##000000	10.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BABFCD

Deuteranopia (green-blind)

#A6B0CD

Tritanopia (blue-blind)

#00CFC9

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #42c8cc;
/* rgb */ color: rgb(66, 200, 204);
/* oklch */ color: oklch(76.4% 0.113 198.0);

Tailwind

colors: {
  custom: {
    50: '#89d9db',
    500: '#42c8cc',
    950: '#000000',
  },
}

SCSS

$custom: #42c8cc;
$custom-light: #89d9db;
$custom-dark: #000000;

JSON

{
  "hex": "#42c8cc",
  "rgb": {
    "r": 66,
    "g": 200,
    "b": 204
  },
  "hsl": {
    "h": 181.739,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.76368,
    "c": 0.11302,
    "h": 198
  },
  "luminance": 0.46826
}

Semantic roles & 50–950 ramp

primary

#42C8CC

secondary

#D39997

accent

#4C47E1

background

#F9FDFD

surface

#F1FAFB

border

#CBD3D4

text

#0D1415

muted

#7E8383

Preview Lab

Preview with #42C8CC

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

Preview Lab → · Contrast checker → · Palette generator →