#42E4E9#42E4E9

#42E4E9 is a very light, vivid teal. Relative luminance 0.625; OKLCH L 84.0% C 0.129 H 198.1°. Best body text is #000000 at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#42E4E9
RGB	rgb(66, 228, 233)
HSL	hsl(182, 79%, 59%)
HSV	hsv(182, 72%, 91%)
CMYK	cmyk(71.7%, 2.1%, 0%, 8.6%)
CIE-LAB	lab(83.19, -38.74, -14.42)
CIE-LCH	lch(83.19, 41.34, 200.41°)
OKLab	oklab(84.05% -0.1226 -0.04)
OKLCH	oklch(84.05% 0.129 198.1)
XYZ	xyz(44.6915, 62.5229, 86.7877)
Luminance	0.6253 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E4E9 #E94742

analogous

#42E99A #42E4E9 #4290E9

triadic

#42E4E9 #E942E4 #E4E942

tetradic

#42E4E9 #9A42E9 #E94742 #90E942

square

#42E4E9 #9A42E9 #E94742 #90E942

split-complementary

#42E4E9 #E94290 #E99A42

monochromatic

#129A9E #19CFD5 #42E4E9 #79ECEF #B0F4F6

Accessibility & contrast

On white

1.55

#42E4E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.51

#42E4E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E4E9

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E4E9	#FFFFFF	#000000	##000000
##42E4E9	1.00	1.55	13.51	13.51
#FFFFFF	1.55	1.00	21.00	21.00
#000000	13.51	21.00	1.00	1.00
##000000	13.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4D9EA

Deuteranopia (green-blind)

#BCC8EA

Tritanopia (blue-blind)

#00ECE5

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #42e4e9;
/* rgb */ color: rgb(66, 228, 233);
/* oklch */ color: oklch(84.0% 0.129 198.1);

Tailwind

colors: {
  custom: {
    50: '#8fedf0',
    500: '#42e4e9',
    950: '#000000',
  },
}

SCSS

$custom: #42e4e9;
$custom-light: #8fedf0;
$custom-dark: #000000;

JSON

{
  "hex": "#42e4e9",
  "rgb": {
    "r": 66,
    "g": 228,
    "b": 233
  },
  "hsl": {
    "h": 181.796,
    "s": 79.147,
    "l": 58.627
  },
  "oklch": {
    "l": 0.84047,
    "c": 0.12899,
    "h": 198.1
  },
  "luminance": 0.62528
}

Semantic roles & 50–950 ramp

primary

#42E4E9

secondary

#A1322E

accent

#3832F6

background

#FCFFFF

surface

#F5FEFE

border

#CFD6D6

text

#0E1616

muted

#7F8585

Preview Lab

Preview with #42E4E9

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

Preview Lab → · Contrast checker → · Palette generator →