#42BFE0#42BFE0

#42BFE0 is a light, moderate cyan. Relative luminance 0.438; OKLCH L 75.0% C 0.117 H 219.2°. Best body text is #000000 at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#42BFE0
RGB	rgb(66, 191, 224)
HSL	hsl(193, 72%, 57%)
HSV	hsv(193, 71%, 88%)
CMYK	cmyk(70.5%, 14.7%, 0%, 12.2%)
CIE-LAB	lab(72.09, -23.64, -26.42)
CIE-LCH	lch(72.09, 35.45, 228.17°)
OKLab	oklab(74.99% -0.0905 -0.0737)
OKLCH	oklch(74.99% 0.117 219.2)
XYZ	xyz(34.3265, 43.7977, 77.1512)
Luminance	0.4380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BFE0 #E06342

analogous

#42E0B2 #42BFE0 #4270E0

triadic

#42BFE0 #E042BF #BFE042

tetradic

#42BFE0 #B242E0 #E06342 #70E042

square

#42BFE0 #B242E0 #E06342 #70E042

split-complementary

#42BFE0 #E04270 #E0B242

monochromatic

#187790 #20A2C5 #42BFE0 #77D1E9 #ABE3F1

Accessibility & contrast

On white

2.15

#42BFE0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.76

#42BFE0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BFE0

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BFE0	#FFFFFF	#000000	##000000
##42BFE0	1.00	2.15	9.76	9.76
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.76	21.00	1.00	1.00
##000000	9.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABAE2

Deuteranopia (green-blind)

#95AAE0

Tritanopia (blue-blind)

#00CAC9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #42bfe0;
/* rgb */ color: rgb(66, 191, 224);
/* oklch */ color: oklch(75.0% 0.117 219.2);

Tailwind

colors: {
  custom: {
    50: '#8ad2e9',
    500: '#42bfe0',
    950: '#000000',
  },
}

SCSS

$custom: #42bfe0;
$custom-light: #8ad2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#42bfe0",
  "rgb": {
    "r": 66,
    "g": 191,
    "b": 224
  },
  "hsl": {
    "h": 192.532,
    "s": 71.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.7499,
    "c": 0.11676,
    "h": 219.2
  },
  "luminance": 0.43802
}

Semantic roles & 50–950 ramp

primary

#42BFE0

secondary

#DFAC9F

accent

#5F39EF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BFE0

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

Preview Lab → · Contrast checker → · Palette generator →