#42AFD4#42AFD4

#42AFD4 is a light, moderate cyan. Relative luminance 0.366; OKLCH L 70.7% C 0.111 H 224.4°. Best body text is #000000 at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#42AFD4
RGB	rgb(66, 175, 212)
HSL	hsl(195, 63%, 55%)
HSV	hsv(195, 69%, 83%)
CMYK	cmyk(68.9%, 17.5%, 0%, 16.9%)
CIE-LAB	lab(66.95, -19.19, -27.75)
CIE-LCH	lch(66.95, 33.74, 235.33°)
OKLab	oklab(70.72% -0.0793 -0.0776)
OKLCH	oklch(70.72% 0.111 224.4)
XYZ	xyz(29.4556, 36.5684, 67.7806)
Luminance	0.3657 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AFD4 #D46742

analogous

#42D4B0 #42AFD4 #4266D4

triadic

#42AFD4 #D442AF #AFD442

tetradic

#42AFD4 #B042D4 #D46742 #66D442

square

#42AFD4 #B042D4 #D46742 #66D442

split-complementary

#42AFD4 #D44266 #D4B042

monochromatic

#1D667F #288EB1 #42AFD4 #74C4DF #A6D9EB

Accessibility & contrast

On white

2.53

#42AFD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.31

#42AFD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AFD4

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AFD4	#FFFFFF	#000000	##000000
##42AFD4	1.00	2.53	8.31	8.31
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.31	21.00	1.00	1.00
##000000	8.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AABD6

Deuteranopia (green-blind)

#869CD4

Tritanopia (blue-blind)

#00BABB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #42afd4;
/* rgb */ color: rgb(66, 175, 212);
/* oklch */ color: oklch(70.7% 0.111 224.4);

Tailwind

colors: {
  custom: {
    50: '#88c7e1',
    500: '#42afd4',
    950: '#000000',
  },
}

SCSS

$custom: #42afd4;
$custom-light: #88c7e1;
$custom-dark: #000000;

JSON

{
  "hex": "#42afd4",
  "rgb": {
    "r": 66,
    "g": 175,
    "b": 212
  },
  "hsl": {
    "h": 195.205,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.7072,
    "c": 0.11092,
    "h": 224.4
  },
  "luminance": 0.36572
}

Semantic roles & 50–950 ramp

primary

#42AFD4

secondary

#D8AA9A

accent

#6B42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42AFD4

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

Preview Lab → · Contrast checker → · Palette generator →