#42B0D5#42B0D5

#42B0D5 is a light, moderate cyan. Relative luminance 0.370; OKLCH L 71.0% C 0.111 H 224.2°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX#42B0D5
RGBrgb(66, 176, 213)
HSLhsl(195, 64%, 55%)
HSVhsv(195, 69%, 84%)
CMYKcmyk(69%, 17.4%, 0%, 16.5%)
CIE-LABlab(67.28, -19.40, -27.79)
CIE-LCHlch(67.28, 33.89, 235.09°)
OKLaboklab(71% -0.0799 -0.0777)
OKLCHoklch(71% 0.111 224.2)
XYZxyz(29.7775, 37.0097, 68.5121)
Luminance0.3701 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42B0D5 #D56742
analogous
#42D5B0 #42B0D5 #4267D5
triadic
#42B0D5 #D542B0 #B0D542
tetradic
#42B0D5 #B042D5 #D56742 #67D542
square
#42B0D5 #B042D5 #D56742 #67D542
split-complementary
#42B0D5 #D54267 #D5B042
monochromatic
#1C6780 #288FB2 #42B0D5 #74C5E0 #A6DAEB

Accessibility & contrast

On white

2.50
#42B0D5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.40
#42B0D5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0D5
8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42B0D5#FFFFFF#000000##000000
##42B0D51.002.508.408.40
#FFFFFF2.501.0021.0021.00
#0000008.4021.001.001.00
##0000008.4021.001.001.00

Color blindness preview

Protanopia (red-blind)
#9BACD7
Deuteranopia (green-blind)
#879DD5
Tritanopia (blue-blind)
#00BBBC
Achromatopsia (no color)
#A4A4A4

Design tokens & code

CSS
--color: #42b0d5;
/* rgb */ color: rgb(66, 176, 213);
/* oklch */ color: oklch(71.0% 0.111 224.2);
Tailwind
colors: {
  custom: {
    50: '#88c7e2',
    500: '#42b0d5',
    950: '#000000',
  },
}
SCSS
$custom: #42b0d5;
$custom-light: #88c7e2;
$custom-dark: #000000;
JSON
{
  "hex": "#42b0d5",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 213
  },
  "hsl": {
    "h": 195.102,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.70999,
    "c": 0.11144,
    "h": 224.2
  },
  "luminance": 0.37013
}

Semantic roles & 50–950 ramp

primary
#42B0D5
secondary
#D8AA9A
accent
#6B41E7
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #42B0D5

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

Preview Lab → · Contrast checker → · Palette generator →

#42B0D5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva