#42BDD8#42BDD8

#42BDD8 is a light, moderate cyan. Relative luminance 0.425; OKLCH L 74.2% C 0.112 H 215.4°. Best body text is #000000 at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#42BDD8
RGB	rgb(66, 189, 216)
HSL	hsl(191, 66%, 55%)
HSV	hsv(191, 69%, 85%)
CMYK	cmyk(69.4%, 12.5%, 0%, 15.3%)
CIE-LAB	lab(71.22, -25.12, -23.40)
CIE-LCH	lch(71.22, 34.33, 222.98°)
OKLab	oklab(74.19% -0.0916 -0.0652)
OKLCH	oklch(74.19% 0.112 215.4)
XYZ	xyz(32.8338, 42.5076, 71.4268)
Luminance	0.4251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BDD8 #D85D42

analogous

#42D8A8 #42BDD8 #4272D8

triadic

#42BDD8 #D842BD #BDD842

tetradic

#42BDD8 #A842D8 #D85D42 #72D842

square

#42BDD8 #A842D8 #D85D42 #72D842

split-complementary

#42BDD8 #D84272 #D8A842

monochromatic

#1B7184 #269DB7 #42BDD8 #75CFE2 #A7E0ED

Accessibility & contrast

On white

2.21

#42BDD8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.50

#42BDD8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BDD8

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BDD8	#FFFFFF	#000000	##000000
##42BDD8	1.00	2.21	9.50	9.50
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.50	21.00	1.00	1.00
##000000	9.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB7DA

Deuteranopia (green-blind)

#95A8D8

Tritanopia (blue-blind)

#00C7C5

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #42bdd8;
/* rgb */ color: rgb(66, 189, 216);
/* oklch */ color: oklch(74.2% 0.112 215.4);

Tailwind

colors: {
  custom: {
    50: '#89d1e4',
    500: '#42bdd8',
    950: '#000000',
  },
}

SCSS

$custom: #42bdd8;
$custom-light: #89d1e4;
$custom-dark: #000000;

JSON

{
  "hex": "#42bdd8",
  "rgb": {
    "r": 66,
    "g": 189,
    "b": 216
  },
  "hsl": {
    "h": 190.8,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.74193,
    "c": 0.11247,
    "h": 215.4
  },
  "luminance": 0.42511
}

Semantic roles & 50–950 ramp

primary

#42BDD8

secondary

#DAA79C

accent

#5E3FE9

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #42BDD8

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

Preview Lab → · Contrast checker → · Palette generator →