#42BCDD#42BCDD

#42BCDD is a light, moderate cyan. Relative luminance 0.423; OKLCH L 74.2% C 0.115 H 219.6°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#42BCDD
RGB	rgb(66, 188, 221)
HSL	hsl(193, 70%, 56%)
HSV	hsv(193, 70%, 87%)
CMYK	cmyk(70.1%, 14.9%, 0%, 13.3%)
CIE-LAB	lab(71.11, -23.06, -26.30)
CIE-LCH	lch(71.11, 34.98, 228.76°)
OKLab	oklab(74.16% -0.0887 -0.0734)
OKLCH	oklch(74.16% 0.115 219.6)
XYZ	xyz(33.2757, 42.3413, 74.8116)
Luminance	0.4234 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BCDD #DD6342

analogous

#42DDB1 #42BCDD #426FDD

triadic

#42BCDD #DD42BC #BCDD42

tetradic

#42BCDD #B142DD #DD6342 #6FDD42

square

#42BCDD #B142DD #DD6342 #6FDD42

split-complementary

#42BCDD #DD426F #DDB142

monochromatic

#19738C #229EBF #42BCDD #76CEE6 #AAE1F0

Accessibility & contrast

On white

2.22

#42BCDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#42BCDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BCDD

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BCDD	#FFFFFF	#000000	##000000
##42BCDD	1.00	2.22	9.47	9.47
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.47	21.00	1.00	1.00
##000000	9.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B7DF

Deuteranopia (green-blind)

#92A7DD

Tritanopia (blue-blind)

#00C7C6

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #42bcdd;
/* rgb */ color: rgb(66, 188, 221);
/* oklch */ color: oklch(74.2% 0.115 219.6);

Tailwind

colors: {
  custom: {
    50: '#8ad0e7',
    500: '#42bcdd',
    950: '#000000',
  },
}

SCSS

$custom: #42bcdd;
$custom-light: #8ad0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42bcdd",
  "rgb": {
    "r": 66,
    "g": 188,
    "b": 221
  },
  "hsl": {
    "h": 192.774,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.74161,
    "c": 0.11516,
    "h": 219.6
  },
  "luminance": 0.42345
}

Semantic roles & 50–950 ramp

primary

#42BCDD

secondary

#DDAB9D

accent

#613BEC

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BCDD

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

Preview Lab → · Contrast checker → · Palette generator →