#42B0D3#42B0D3

#42B0D3 is a light, moderate cyan. Relative luminance 0.369; OKLCH L 70.9% C 0.110 H 222.9°. Best body text is #000000 at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#42B0D3
RGB	rgb(66, 176, 211)
HSL	hsl(194, 62%, 54%)
HSV	hsv(194, 69%, 83%)
CMYK	cmyk(68.7%, 16.6%, 0%, 17.3%)
CIE-LAB	lab(67.21, -20.03, -26.80)
CIE-LCH	lch(67.21, 33.46, 233.23°)
OKLab	oklab(70.91% -0.0806 -0.0749)
OKLCH	oklch(70.91% 0.11 222.9)
XYZ	xyz(29.5252, 36.9088, 67.1834)
Luminance	0.3691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B0D3 #D36542

analogous

#42D3AE #42B0D3 #4268D3

triadic

#42B0D3 #D342B0 #B0D342

tetradic

#42B0D3 #AE42D3 #D36542 #68D342

square

#42B0D3 #AE42D3 #D36542 #68D342

split-complementary

#42B0D3 #D34268 #D3AE42

monochromatic

#1D667D #298FAF #42B0D3 #74C5DF #A5DAEA

Accessibility & contrast

On white

2.51

#42B0D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.38

#42B0D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0D3

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B0D3	#FFFFFF	#000000	##000000
##42B0D3	1.00	2.51	8.38	8.38
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.38	21.00	1.00	1.00
##000000	8.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CACD5

Deuteranopia (green-blind)

#889DD3

Tritanopia (blue-blind)

#00BBBB

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42b0d3;
/* rgb */ color: rgb(66, 176, 211);
/* oklch */ color: oklch(70.9% 0.110 222.9);

Tailwind

colors: {
  custom: {
    50: '#88c7e0',
    500: '#42b0d3',
    950: '#000000',
  },
}

SCSS

$custom: #42b0d3;
$custom-light: #88c7e0;
$custom-dark: #000000;

JSON

{
  "hex": "#42b0d3",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 211
  },
  "hsl": {
    "h": 194.483,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.70913,
    "c": 0.11004,
    "h": 222.9
  },
  "luminance": 0.36912
}

Semantic roles & 50–950 ramp

primary

#42B0D3

secondary

#D7A89A

accent

#6A42E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B0D3

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

Preview Lab → · Contrast checker → · Palette generator →