#42BBD7#42BBD7

#42BBD7 is a light, moderate cyan. Relative luminance 0.416; OKLCH L 73.7% C 0.112 H 216.4°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#42BBD7
RGB	rgb(66, 187, 215)
HSL	hsl(191, 65%, 55%)
HSV	hsv(191, 69%, 84%)
CMYK	cmyk(69.3%, 13%, 0%, 15.7%)
CIE-LAB	lab(70.60, -24.42, -23.81)
CIE-LCH	lch(70.60, 34.10, 224.28°)
OKLab	oklab(73.68% -0.0901 -0.0664)
OKLCH	oklch(73.68% 0.112 216.4)
XYZ	xyz(32.2777, 41.6015, 70.6056)
Luminance	0.4160 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBD7 #D75E42

analogous

#42D7A8 #42BBD7 #4271D7

triadic

#42BBD7 #D742BB #BBD742

tetradic

#42BBD7 #A842D7 #D75E42 #71D742

square

#42BBD7 #A842D7 #D75E42 #71D742

split-complementary

#42BBD7 #D74271 #D7A842

monochromatic

#1C7083 #269BB5 #42BBD7 #75CDE2 #A7DFEC

Accessibility & contrast

On white

2.25

#42BBD7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#42BBD7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBD7

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBD7	#FFFFFF	#000000	##000000
##42BBD7	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B5D9

Deuteranopia (green-blind)

#93A6D7

Tritanopia (blue-blind)

#00C5C4

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #42bbd7;
/* rgb */ color: rgb(66, 187, 215);
/* oklch */ color: oklch(73.7% 0.112 216.4);

Tailwind

colors: {
  custom: {
    50: '#89cfe3',
    500: '#42bbd7',
    950: '#000000',
  },
}

SCSS

$custom: #42bbd7;
$custom-light: #89cfe3;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbd7",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 215
  },
  "hsl": {
    "h": 191.275,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.7368,
    "c": 0.11186,
    "h": 216.4
  },
  "luminance": 0.41605
}

Semantic roles & 50–950 ramp

primary

#42BBD7

secondary

#DAA79B

accent

#5F40E8

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #42BBD7

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

Preview Lab → · Contrast checker → · Palette generator →