#42E5E9#42E5E9

#42E5E9 is a very light, vivid teal. Relative luminance 0.631; OKLCH L 84.3% C 0.130 H 197.5°. Best body text is #000000 at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#42E5E9
RGB	rgb(66, 229, 233)
HSL	hsl(181, 79%, 59%)
HSV	hsv(181, 72%, 91%)
CMYK	cmyk(71.7%, 1.7%, 0%, 8.6%)
CIE-LAB	lab(83.48, -39.20, -13.98)
CIE-LCH	lch(83.48, 41.62, 199.63°)
OKLab	oklab(84.28% -0.1236 -0.0388)
OKLCH	oklch(84.28% 0.13 197.5)
XYZ	xyz(44.9674, 63.0747, 86.8797)
Luminance	0.6308 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E5E9 #E94642

analogous

#42E999 #42E5E9 #4291E9

triadic

#42E5E9 #E942E5 #E5E942

tetradic

#42E5E9 #9942E9 #E94642 #91E942

square

#42E5E9 #9942E9 #E94642 #91E942

split-complementary

#42E5E9 #E94291 #E99942

monochromatic

#129B9E #19D0D5 #42E5E9 #79EDEF #B0F4F6

Accessibility & contrast

On white

1.54

#42E5E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.62

#42E5E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E5E9

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E5E9	#FFFFFF	#000000	##000000
##42E5E9	1.00	1.54	13.62	13.62
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.62	21.00	1.00	1.00
##000000	13.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5DAEA

Deuteranopia (green-blind)

#BDC8EA

Tritanopia (blue-blind)

#00EDE6

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #42e5e9;
/* rgb */ color: rgb(66, 229, 233);
/* oklch */ color: oklch(84.3% 0.130 197.5);

Tailwind

colors: {
  custom: {
    50: '#8feef0',
    500: '#42e5e9',
    950: '#000000',
  },
}

SCSS

$custom: #42e5e9;
$custom-light: #8feef0;
$custom-dark: #000000;

JSON

{
  "hex": "#42e5e9",
  "rgb": {
    "r": 66,
    "g": 229,
    "b": 233
  },
  "hsl": {
    "h": 181.437,
    "s": 79.147,
    "l": 58.627
  },
  "oklch": {
    "l": 0.84283,
    "c": 0.12952,
    "h": 197.5
  },
  "luminance": 0.6308
}

Semantic roles & 50–950 ramp

primary

#42E5E9

secondary

#A1312E

accent

#3732F6

background

#FCFFFF

surface

#F5FEFE

border

#CFD6D6

text

#0E1616

muted

#7F8585

Preview Lab

Preview with #42E5E9

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

Preview Lab → · Contrast checker → · Palette generator →