#42BDE3#42BDE3

#42BDE3 is a light, moderate cyan. Relative luminance 0.431; OKLCH L 74.6% C 0.119 H 222.6°. Best body text is #000000 at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#42BDE3
RGB	rgb(66, 189, 227)
HSL	hsl(194, 74%, 57%)
HSV	hsv(194, 71%, 89%)
CMYK	cmyk(70.9%, 16.7%, 0%, 11%)
CIE-LAB	lab(71.62, -21.68, -28.77)
CIE-LCH	lch(71.62, 36.03, 233.00°)
OKLab	oklab(74.65% -0.0874 -0.0805)
OKLCH	oklch(74.65% 0.119 222.6)
XYZ	xyz(34.3038, 43.0955, 79.1685)
Luminance	0.4310 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BDE3 #E36842

analogous

#42E3B8 #42BDE3 #426DE3

triadic

#42BDE3 #E342BD #BDE342

tetradic

#42BDE3 #B842E3 #E36842 #6DE342

square

#42BDE3 #B842E3 #E36842 #6DE342

split-complementary

#42BDE3 #E3426D #E3B842

monochromatic

#167795 #1EA1CA #42BDE3 #77D0EB #ADE2F3

Accessibility & contrast

On white

2.18

#42BDE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.62

#42BDE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BDE3

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BDE3	#FFFFFF	#000000	##000000
##42BDE3	1.00	2.18	9.62	9.62
#FFFFFF	2.18	1.00	21.00	21.00
#000000	9.62	21.00	1.00	1.00
##000000	9.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7B9E5

Deuteranopia (green-blind)

#91A8E3

Tritanopia (blue-blind)

#00C9C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42bde3;
/* rgb */ color: rgb(66, 189, 227);
/* oklch */ color: oklch(74.6% 0.119 222.6);

Tailwind

colors: {
  custom: {
    50: '#8bd1ec',
    500: '#42bde3',
    950: '#000000',
  },
}

SCSS

$custom: #42bde3;
$custom-light: #8bd1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#42bde3",
  "rgb": {
    "r": 66,
    "g": 189,
    "b": 227
  },
  "hsl": {
    "h": 194.161,
    "s": 74.194,
    "l": 57.451
  },
  "oklch": {
    "l": 0.74647,
    "c": 0.11883,
    "h": 222.6
  },
  "luminance": 0.43099
}

Semantic roles & 50–950 ramp

primary

#42BDE3

secondary

#E1AFA0

accent

#6337F1

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BDE3

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

Preview Lab → · Contrast checker → · Palette generator →