#42B0D7#42B0D7

#42B0D7 is a light, moderate cyan. Relative luminance 0.371; OKLCH L 71.1% C 0.113 H 225.5°. Best body text is #000000 at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#42B0D7
RGB	rgb(66, 176, 215)
HSL	hsl(196, 65%, 55%)
HSV	hsv(196, 69%, 84%)
CMYK	cmyk(69.3%, 18.1%, 0%, 15.7%)
CIE-LAB	lab(67.36, -18.76, -28.77)
CIE-LCH	lch(67.36, 34.35, 236.90°)
OKLab	oklab(71.08% -0.0791 -0.0805)
OKLCH	oklch(71.08% 0.113 225.5)
XYZ	xyz(30.0329, 37.1118, 69.8573)
Luminance	0.3711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B0D7 #D76942

analogous

#42D7B4 #42B0D7 #4265D7

triadic

#42B0D7 #D742B0 #B0D742

tetradic

#42B0D7 #B442D7 #D76942 #65D742

square

#42B0D7 #B442D7 #D76942 #65D742

split-complementary

#42B0D7 #D74265 #D7B442

monochromatic

#1C6883 #2690B5 #42B0D7 #75C5E2 #A7DAEC

Accessibility & contrast

On white

2.49

#42B0D7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.42

#42B0D7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0D7

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B0D7	#FFFFFF	#000000	##000000
##42B0D7	1.00	2.49	8.42	8.42
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.42	21.00	1.00	1.00
##000000	8.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BACD9

Deuteranopia (green-blind)

#869DD7

Tritanopia (blue-blind)

#00BCBD

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42b0d7;
/* rgb */ color: rgb(66, 176, 215);
/* oklch */ color: oklch(71.1% 0.113 225.5);

Tailwind

colors: {
  custom: {
    50: '#88c7e3',
    500: '#42b0d7',
    950: '#000000',
  },
}

SCSS

$custom: #42b0d7;
$custom-light: #88c7e3;
$custom-dark: #000000;

JSON

{
  "hex": "#42b0d7",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 215
  },
  "hsl": {
    "h": 195.705,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.71085,
    "c": 0.11289,
    "h": 225.5
  },
  "luminance": 0.37115
}

Semantic roles & 50–950 ramp

primary

#42B0D7

secondary

#DAAC9B

accent

#6C40E8

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B0D7

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

Preview Lab → · Contrast checker → · Palette generator →