#42BBDB#42BBDB

#42BBDB is a light, moderate cyan. Relative luminance 0.418; OKLCH L 73.8% C 0.114 H 219.1°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#42BBDB
RGB	rgb(66, 187, 219)
HSL	hsl(193, 68%, 56%)
HSV	hsv(193, 70%, 86%)
CMYK	cmyk(69.9%, 14.6%, 0%, 14.1%)
CIE-LAB	lab(70.74, -23.17, -25.77)
CIE-LCH	lch(70.74, 34.66, 228.04°)
OKLab	oklab(73.84% -0.0885 -0.0719)
OKLCH	oklch(73.84% 0.114 219.1)
XYZ	xyz(32.7980, 41.8096, 73.3456)
Luminance	0.4181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBDB #DB6242

analogous

#42DBAE #42BBDB #426EDB

triadic

#42BBDB #DB42BB #BBDB42

tetradic

#42BBDB #AE42DB #DB6242 #6EDB42

square

#42BBDB #AE42DB #DB6242 #6EDB42

split-complementary

#42BBDB #DB426E #DBAE42

monochromatic

#1A7189 #249CBC #42BBDB #75CDE5 #A9E0EF

Accessibility & contrast

On white

2.24

#42BBDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.36

#42BBDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBDB

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBDB	#FFFFFF	#000000	##000000
##42BBDB	1.00	2.24	9.36	9.36
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.36	21.00	1.00	1.00
##000000	9.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7B6DD

Deuteranopia (green-blind)

#92A6DB

Tritanopia (blue-blind)

#00C6C5

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #42bbdb;
/* rgb */ color: rgb(66, 187, 219);
/* oklch */ color: oklch(73.8% 0.114 219.1);

Tailwind

colors: {
  custom: {
    50: '#89cfe6',
    500: '#42bbdb',
    950: '#000000',
  },
}

SCSS

$custom: #42bbdb;
$custom-light: #89cfe6;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbdb",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 219
  },
  "hsl": {
    "h": 192.549,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.73843,
    "c": 0.11404,
    "h": 219.1
  },
  "luminance": 0.41813
}

Semantic roles & 50–950 ramp

primary

#42BBDB

secondary

#DCAA9D

accent

#613DEB

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BBDB

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

Preview Lab → · Contrast checker → · Palette generator →