#42B7D2#42B7D2

#42B7D2 is a light, moderate cyan. Relative luminance 0.397; OKLCH L 72.5% C 0.109 H 216.2°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#42B7D2
RGB	rgb(66, 183, 210)
HSL	hsl(191, 62%, 54%)
HSV	hsv(191, 69%, 82%)
CMYK	cmyk(68.6%, 12.9%, 0%, 17.6%)
CIE-LAB	lab(69.24, -23.94, -23.15)
CIE-LCH	lch(69.24, 33.30, 224.04°)
OKLab	oklab(72.53% -0.088 -0.0645)
OKLCH	oklch(72.53% 0.109 216.2)
XYZ	xyz(30.8083, 39.6749, 66.9946)
Luminance	0.3968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B7D2 #D25D42

analogous

#42D2A5 #42B7D2 #426FD2

triadic

#42B7D2 #D242B7 #B7D242

tetradic

#42B7D2 #A542D2 #D25D42 #6FD242

square

#42B7D2 #A542D2 #D25D42 #6FD242

split-complementary

#42B7D2 #D2426F #D2A542

monochromatic

#1E6A7C #2995AD #42B7D2 #73CADE #A5DDEA

Accessibility & contrast

On white

2.35

#42B7D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#42B7D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7D2

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B7D2	#FFFFFF	#000000	##000000
##42B7D2	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B2D4

Deuteranopia (green-blind)

#90A3D2

Tritanopia (blue-blind)

#00C1BF

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #42b7d2;
/* rgb */ color: rgb(66, 183, 210);
/* oklch */ color: oklch(72.5% 0.109 216.2);

Tailwind

colors: {
  custom: {
    50: '#88ccdf',
    500: '#42b7d2',
    950: '#000000',
  },
}

SCSS

$custom: #42b7d2;
$custom-light: #88ccdf;
$custom-dark: #000000;

JSON

{
  "hex": "#42b7d2",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 210
  },
  "hsl": {
    "h": 191.25,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.72529,
    "c": 0.10912,
    "h": 216.2
  },
  "luminance": 0.39678
}

Semantic roles & 50–950 ramp

primary

#42B7D2

secondary

#D7A599

accent

#6143E5

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B7D2

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

Preview Lab → · Contrast checker → · Palette generator →