#42C5DC#42C5DC

#42C5DC is a light, moderate teal. Relative luminance 0.463; OKLCH L 76.2% C 0.115 H 211.7°. Best body text is #000000 at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#42C5DC
RGB	rgb(66, 197, 220)
HSL	hsl(189, 69%, 56%)
HSV	hsv(189, 70%, 86%)
CMYK	cmyk(70%, 10.5%, 0%, 13.7%)
CIE-LAB	lab(73.71, -27.87, -21.78)
CIE-LCH	lch(73.71, 35.37, 218.01°)
OKLab	oklab(76.24% -0.0979 -0.0606)
OKLCH	oklch(76.24% 0.115 211.7)
XYZ	xyz(35.1258, 46.2540, 74.7729)
Luminance	0.4626 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5DC #DC5942

analogous

#42DCA6 #42C5DC #4278DC

triadic

#42C5DC #DC42C5 #C5DC42

tetradic

#42C5DC #A642DC #DC5942 #78DC42

square

#42C5DC #A642DC #DC5942 #78DC42

split-complementary

#42C5DC #DC4278 #DCA642

monochromatic

#1A798A #23A7BE #42C5DC #76D5E6 #A9E5EF

Accessibility & contrast

On white

2.05

#42C5DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.25

#42C5DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5DC

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5DC	#FFFFFF	#000000	##000000
##42C5DC	1.00	2.05	10.25	10.25
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.25	21.00	1.00	1.00
##000000	10.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3BEDD

Deuteranopia (green-blind)

#9DAEDC

Tritanopia (blue-blind)

#00CFCC

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #42c5dc;
/* rgb */ color: rgb(66, 197, 220);
/* oklch */ color: oklch(76.2% 0.115 211.7);

Tailwind

colors: {
  custom: {
    50: '#8ad7e6',
    500: '#42c5dc',
    950: '#000000',
  },
}

SCSS

$custom: #42c5dc;
$custom-light: #8ad7e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5dc",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 220
  },
  "hsl": {
    "h": 188.961,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.76244,
    "c": 0.11518,
    "h": 211.7
  },
  "luminance": 0.46258
}

Semantic roles & 50–950 ramp

primary

#42C5DC

secondary

#DDA79D

accent

#563CEC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #42C5DC

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

Preview Lab → · Contrast checker → · Palette generator →