#42ABD3#42ABD3

#42ABD3 is a light, moderate cyan. Relative luminance 0.350; OKLCH L 69.7% C 0.111 H 227.1°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#42ABD3
RGB	rgb(66, 171, 211)
HSL	hsl(197, 62%, 54%)
HSV	hsv(197, 69%, 83%)
CMYK	cmyk(68.7%, 19%, 0%, 17.3%)
CIE-LAB	lab(65.74, -17.40, -29.07)
CIE-LCH	lch(65.74, 33.88, 239.09°)
OKLab	oklab(69.74% -0.0756 -0.0814)
OKLCH	oklch(69.74% 0.111 227.1)
XYZ	xyz(28.5628, 34.9840, 66.8627)
Luminance	0.3499 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ABD3 #D36A42

analogous

#42D3B3 #42ABD3 #4263D3

triadic

#42ABD3 #D342AB #ABD342

tetradic

#42ABD3 #B342D3 #D36A42 #63D342

square

#42ABD3 #B342D3 #D36A42 #63D342

split-complementary

#42ABD3 #D34263 #D3B342

monochromatic

#1D637D #298AAF #42ABD3 #74C1DF #A5D7EA

Accessibility & contrast

On white

2.63

#42ABD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.00

#42ABD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ABD3

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ABD3	#FFFFFF	#000000	##000000
##42ABD3	1.00	2.63	8.00	8.00
#FFFFFF	2.63	1.00	21.00	21.00
#000000	8.00	21.00	1.00	1.00
##000000	8.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A8D5

Deuteranopia (green-blind)

#8299D3

Tritanopia (blue-blind)

#00B7B8

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #42abd3;
/* rgb */ color: rgb(66, 171, 211);
/* oklch */ color: oklch(69.7% 0.111 227.1);

Tailwind

colors: {
  custom: {
    50: '#87c4e0',
    500: '#42abd3',
    950: '#000000',
  },
}

SCSS

$custom: #42abd3;
$custom-light: #87c4e0;
$custom-dark: #000000;

JSON

{
  "hex": "#42abd3",
  "rgb": {
    "r": 66,
    "g": 171,
    "b": 211
  },
  "hsl": {
    "h": 196.552,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.69735,
    "c": 0.1111,
    "h": 227.1
  },
  "luminance": 0.34987
}

Semantic roles & 50–950 ramp

primary

#42ABD3

secondary

#D7AB9A

accent

#6F42E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #42ABD3

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

Preview Lab → · Contrast checker → · Palette generator →