#42BDDD#42BDDD

#42BDDD is a light, moderate cyan. Relative luminance 0.428; OKLCH L 74.4% C 0.115 H 218.8°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#42BDDD
RGB	rgb(66, 189, 221)
HSL	hsl(192, 70%, 56%)
HSV	hsv(192, 70%, 87%)
CMYK	cmyk(70.1%, 14.5%, 0%, 13.3%)
CIE-LAB	lab(71.40, -23.57, -25.85)
CIE-LCH	lch(71.40, 34.98, 227.65°)
OKLab	oklab(74.4% -0.0897 -0.0721)
OKLCH	oklch(74.4% 0.115 218.8)
XYZ	xyz(33.4901, 42.7701, 74.8830)
Luminance	0.4277 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BDDD #DD6242

analogous

#42DDB0 #42BDDD #4270DD

triadic

#42BDDD #DD42BD #BDDD42

tetradic

#42BDDD #B042DD #DD6242 #70DD42

square

#42BDDD #B042DD #DD6242 #70DD42

split-complementary

#42BDDD #DD4270 #DDB042

monochromatic

#19748C #229FBF #42BDDD #76CFE6 #AAE1F0

Accessibility & contrast

On white

2.20

#42BDDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#42BDDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BDDD

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BDDD	#FFFFFF	#000000	##000000
##42BDDD	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B8DF

Deuteranopia (green-blind)

#93A8DD

Tritanopia (blue-blind)

#00C8C7

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42bddd;
/* rgb */ color: rgb(66, 189, 221);
/* oklch */ color: oklch(74.4% 0.115 218.8);

Tailwind

colors: {
  custom: {
    50: '#8ad1e7',
    500: '#42bddd',
    950: '#000000',
  },
}

SCSS

$custom: #42bddd;
$custom-light: #8ad1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42bddd",
  "rgb": {
    "r": 66,
    "g": 189,
    "b": 221
  },
  "hsl": {
    "h": 192.387,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.74397,
    "c": 0.11511,
    "h": 218.8
  },
  "luminance": 0.42774
}

Semantic roles & 50–950 ramp

primary

#42BDDD

secondary

#DDAB9D

accent

#603BEC

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BDDD

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

Preview Lab → · Contrast checker → · Palette generator →