#42B3D6#42B3D6

#42B3D6 is a light, moderate cyan. Relative luminance 0.383; OKLCH L 71.7% C 0.112 H 222.4°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#42B3D6
RGB	rgb(66, 179, 214)
HSL	hsl(194, 64%, 55%)
HSV	hsv(194, 69%, 84%)
CMYK	cmyk(69.2%, 16.4%, 0%, 16.1%)
CIE-LAB	lab(68.20, -20.64, -26.92)
CIE-LCH	lch(68.20, 33.92, 232.53°)
OKLab	oklab(71.75% -0.0825 -0.0752)
OKLCH	oklch(71.75% 0.112 222.4)
XYZ	xyz(30.4995, 38.2501, 69.3809)
Luminance	0.3825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B3D6 #D66542

analogous

#42D6AF #42B3D6 #4269D6

triadic

#42B3D6 #D642B3 #B3D642

tetradic

#42B3D6 #AF42D6 #D66542 #69D642

square

#42B3D6 #AF42D6 #D66542 #69D642

split-complementary

#42B3D6 #D64269 #D6AF42

monochromatic

#1C6A82 #2793B4 #42B3D6 #74C7E1 #A7DBEC

Accessibility & contrast

On white

2.43

#42B3D6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#42B3D6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B3D6

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B3D6	#FFFFFF	#000000	##000000
##42B3D6	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FAFD8

Deuteranopia (green-blind)

#8AA0D6

Tritanopia (blue-blind)

#00BEBE

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b3d6;
/* rgb */ color: rgb(66, 179, 214);
/* oklch */ color: oklch(71.7% 0.112 222.4);

Tailwind

colors: {
  custom: {
    50: '#88cae2',
    500: '#42b3d6',
    950: '#000000',
  },
}

SCSS

$custom: #42b3d6;
$custom-light: #88cae2;
$custom-dark: #000000;

JSON

{
  "hex": "#42b3d6",
  "rgb": {
    "r": 66,
    "g": 179,
    "b": 214
  },
  "hsl": {
    "h": 194.189,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.71749,
    "c": 0.11164,
    "h": 222.4
  },
  "luminance": 0.38253
}

Semantic roles & 50–950 ramp

primary

#42B3D6

secondary

#D9A99B

accent

#6840E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B3D6

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

Preview Lab → · Contrast checker → · Palette generator →