#42BFD8#42BFD8

#42BFD8 is a light, moderate cyan. Relative luminance 0.434; OKLCH L 74.7% C 0.113 H 213.8°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#42BFD8
RGB	rgb(66, 191, 216)
HSL	hsl(190, 66%, 55%)
HSV	hsv(190, 69%, 85%)
CMYK	cmyk(69.4%, 11.6%, 0%, 15.3%)
CIE-LAB	lab(71.81, -26.12, -22.50)
CIE-LCH	lch(71.81, 34.47, 220.75°)
OKLab	oklab(74.67% -0.0936 -0.0626)
OKLCH	oklch(74.67% 0.113 213.8)
XYZ	xyz(33.2670, 43.3739, 71.5712)
Luminance	0.4338 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BFD8 #D85B42

analogous

#42D8A6 #42BFD8 #4274D8

triadic

#42BFD8 #D842BF #BFD842

tetradic

#42BFD8 #A642D8 #D85B42 #74D842

square

#42BFD8 #A642D8 #D85B42 #74D842

split-complementary

#42BFD8 #D84274 #D8A642

monochromatic

#1B7384 #269FB7 #42BFD8 #75D0E2 #A7E1ED

Accessibility & contrast

On white

2.17

#42BFD8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#42BFD8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BFD8

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BFD8	#FFFFFF	#000000	##000000
##42BFD8	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB9D9

Deuteranopia (green-blind)

#98A9D8

Tritanopia (blue-blind)

#00C9C7

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #42bfd8;
/* rgb */ color: rgb(66, 191, 216);
/* oklch */ color: oklch(74.7% 0.113 213.8);

Tailwind

colors: {
  custom: {
    50: '#89d2e4',
    500: '#42bfd8',
    950: '#000000',
  },
}

SCSS

$custom: #42bfd8;
$custom-light: #89d2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#42bfd8",
  "rgb": {
    "r": 66,
    "g": 191,
    "b": 216
  },
  "hsl": {
    "h": 190,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.74667,
    "c": 0.11266,
    "h": 213.8
  },
  "luminance": 0.43378
}

Semantic roles & 50–950 ramp

primary

#42BFD8

secondary

#DAA69C

accent

#5B3FE9

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #42BFD8

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

Preview Lab → · Contrast checker → · Palette generator →