#42D5DB#42D5DB

#42D5DB is a light, vivid teal. Relative luminance 0.539; OKLCH L 80.0% C 0.121 H 199.1°. Best body text is #000000 at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#42D5DB
RGB	rgb(66, 213, 219)
HSL	hsl(182, 68%, 56%)
HSV	hsv(182, 70%, 86%)
CMYK	cmyk(69.9%, 2.7%, 0%, 14.1%)
CIE-LAB	lab(78.38, -35.82, -14.19)
CIE-LCH	lch(78.38, 38.53, 201.60°)
OKLab	oklab(80.01% -0.114 -0.0394)
OKLCH	oklch(80.01% 0.121 199.1)
XYZ	xyz(38.8215, 53.8567, 75.3535)
Luminance	0.5386 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D5DB #DB4842

analogous

#42DB94 #42D5DB #4288DB

triadic

#42D5DB #DB42D5 #D5DB42

tetradic

#42D5DB #9442DB #DB4842 #88DB42

square

#42D5DB #9442DB #DB4842 #88DB42

split-complementary

#42D5DB #DB4288 #DB9442

monochromatic

#1A8489 #24B6BC #42D5DB #75E0E5 #A9ECEF

Accessibility & contrast

On white

1.78

#42D5DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.77

#42D5DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5DB

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D5DB	#FFFFFF	#000000	##000000
##42D5DB	1.00	1.78	11.77	11.77
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.77	21.00	1.00	1.00
##000000	11.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6CBDC

Deuteranopia (green-blind)

#AFBBDC

Tritanopia (blue-blind)

#00DDD6

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #42d5db;
/* rgb */ color: rgb(66, 213, 219);
/* oklch */ color: oklch(80.0% 0.121 199.1);

Tailwind

colors: {
  custom: {
    50: '#8ce2e6',
    500: '#42d5db',
    950: '#000000',
  },
}

SCSS

$custom: #42d5db;
$custom-light: #8ce2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42d5db",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 219
  },
  "hsl": {
    "h": 182.353,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.80005,
    "c": 0.12063,
    "h": 199.1
  },
  "luminance": 0.53861
}

Semantic roles & 50–950 ramp

primary

#42D5DB

secondary

#8F3633

accent

#443DEB

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #42D5DB

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

Preview Lab → · Contrast checker → · Palette generator →