#42C8E0#42C8E0

#42C8E0 is a light, moderate teal. Relative luminance 0.478; OKLCH L 77.1% C 0.117 H 212.1°. Best body text is #000000 at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#42C8E0
RGB	rgb(66, 200, 224)
HSL	hsl(189, 72%, 57%)
HSV	hsv(189, 71%, 88%)
CMYK	cmyk(70.5%, 10.7%, 0%, 12.2%)
CIE-LAB	lab(74.73, -28.13, -22.40)
CIE-LCH	lch(74.73, 35.96, 218.52°)
OKLab	oklab(77.11% -0.0993 -0.0623)
OKLCH	oklch(77.11% 0.117 212.1)
XYZ	xyz(36.3499, 47.8444, 77.8257)
Luminance	0.4785 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C8E0 #E05A42

analogous

#42E0A9 #42C8E0 #4279E0

triadic

#42C8E0 #E042C8 #C8E042

tetradic

#42C8E0 #A942E0 #E05A42 #79E042

square

#42C8E0 #A942E0 #E05A42 #79E042

split-complementary

#42C8E0 #E04279 #E0A942

monochromatic

#187E90 #20ACC5 #42C8E0 #77D7E9 #ABE7F1

Accessibility & contrast

On white

1.99

#42C8E0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.57

#42C8E0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C8E0

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C8E0	#FFFFFF	#000000	##000000
##42C8E0	1.00	1.99	10.57	10.57
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.57	21.00	1.00	1.00
##000000	10.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C1E1

Deuteranopia (green-blind)

#9FB1E0

Tritanopia (blue-blind)

#00D2CF

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #42c8e0;
/* rgb */ color: rgb(66, 200, 224);
/* oklch */ color: oklch(77.1% 0.117 212.1);

Tailwind

colors: {
  custom: {
    50: '#8bd9e9',
    500: '#42c8e0',
    950: '#000000',
  },
}

SCSS

$custom: #42c8e0;
$custom-light: #8bd9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#42c8e0",
  "rgb": {
    "r": 66,
    "g": 200,
    "b": 224
  },
  "hsl": {
    "h": 189.114,
    "s": 71.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.77109,
    "c": 0.11724,
    "h": 212.1
  },
  "luminance": 0.47849
}

Semantic roles & 50–950 ramp

primary

#42C8E0

secondary

#DFA89F

accent

#5539EF

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #42C8E0

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

Preview Lab → · Contrast checker → · Palette generator →