#42B2D4#42B2D4

#42B2D4 is a light, moderate cyan. Relative luminance 0.378; OKLCH L 71.4% C 0.110 H 221.9°. Best body text is #000000 at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#42B2D4
RGB	rgb(66, 178, 212)
HSL	hsl(194, 63%, 55%)
HSV	hsv(194, 69%, 83%)
CMYK	cmyk(68.9%, 16%, 0%, 16.9%)
CIE-LAB	lab(67.84, -20.75, -26.39)
CIE-LCH	lch(67.84, 33.57, 231.82°)
OKLab	oklab(71.43% -0.0823 -0.0737)
OKLCH	oklch(71.43% 0.11 221.9)
XYZ	xyz(30.0460, 37.7491, 67.9774)
Luminance	0.3775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B2D4 #D46442

analogous

#42D4AD #42B2D4 #4269D4

triadic

#42B2D4 #D442B2 #B2D442

tetradic

#42B2D4 #AD42D4 #D46442 #69D442

square

#42B2D4 #AD42D4 #D46442 #69D442

split-complementary

#42B2D4 #D44269 #D4AD42

monochromatic

#1D687F #2891B1 #42B2D4 #74C6DF #A6DBEB

Accessibility & contrast

On white

2.46

#42B2D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.55

#42B2D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B2D4

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B2D4	#FFFFFF	#000000	##000000
##42B2D4	1.00	2.46	8.55	8.55
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.55	21.00	1.00	1.00
##000000	8.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EAED6

Deuteranopia (green-blind)

#8A9FD4

Tritanopia (blue-blind)

#00BDBD

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #42b2d4;
/* rgb */ color: rgb(66, 178, 212);
/* oklch */ color: oklch(71.4% 0.110 221.9);

Tailwind

colors: {
  custom: {
    50: '#88c9e1',
    500: '#42b2d4',
    950: '#000000',
  },
}

SCSS

$custom: #42b2d4;
$custom-light: #88c9e1;
$custom-dark: #000000;

JSON

{
  "hex": "#42b2d4",
  "rgb": {
    "r": 66,
    "g": 178,
    "b": 212
  },
  "hsl": {
    "h": 193.973,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.71428,
    "c": 0.11045,
    "h": 221.9
  },
  "luminance": 0.37753
}

Semantic roles & 50–950 ramp

primary

#42B2D4

secondary

#D8A89A

accent

#6842E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B2D4

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

Preview Lab → · Contrast checker → · Palette generator →