#42BCE3#42BCE3

#42BCE3 is a light, moderate cyan. Relative luminance 0.427; OKLCH L 74.4% C 0.119 H 223.4°. Best body text is #000000 at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#42BCE3
RGB	rgb(66, 188, 227)
HSL	hsl(195, 74%, 57%)
HSV	hsv(195, 71%, 89%)
CMYK	cmyk(70.9%, 17.2%, 0%, 11%)
CIE-LAB	lab(71.33, -21.17, -29.22)
CIE-LCH	lch(71.33, 36.08, 234.08°)
OKLab	oklab(74.41% -0.0865 -0.0817)
OKLCH	oklch(74.41% 0.119 223.4)
XYZ	xyz(34.0894, 42.6668, 79.0971)
Luminance	0.4267 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BCE3 #E36942

analogous

#42E3B9 #42BCE3 #426CE3

triadic

#42BCE3 #E342BC #BCE342

tetradic

#42BCE3 #B942E3 #E36942 #6CE342

square

#42BCE3 #B942E3 #E36942 #6CE342

split-complementary

#42BCE3 #E3426C #E3B942

monochromatic

#167695 #1EA0CA #42BCE3 #77CFEB #ADE2F3

Accessibility & contrast

On white

2.20

#42BCE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.53

#42BCE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BCE3

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BCE3	#FFFFFF	#000000	##000000
##42BCE3	1.00	2.20	9.53	9.53
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.53	21.00	1.00	1.00
##000000	9.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B8E5

Deuteranopia (green-blind)

#90A8E3

Tritanopia (blue-blind)

#00C8C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42bce3;
/* rgb */ color: rgb(66, 188, 227);
/* oklch */ color: oklch(74.4% 0.119 223.4);

Tailwind

colors: {
  custom: {
    50: '#8bd0ec',
    500: '#42bce3',
    950: '#000000',
  },
}

SCSS

$custom: #42bce3;
$custom-light: #8bd0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#42bce3",
  "rgb": {
    "r": 66,
    "g": 188,
    "b": 227
  },
  "hsl": {
    "h": 194.534,
    "s": 74.194,
    "l": 57.451
  },
  "oklch": {
    "l": 0.74414,
    "c": 0.119,
    "h": 223.4
  },
  "luminance": 0.42671
}

Semantic roles & 50–950 ramp

primary

#42BCE3

secondary

#E1B0A0

accent

#6437F1

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BCE3

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

Preview Lab → · Contrast checker → · Palette generator →