#42BBED#42BBED

#42BBED is a light, vivid cyan. Relative luminance 0.428; OKLCH L 74.6% C 0.127 H 229.8°. Best body text is #000000 at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#42BBED
RGB	rgb(66, 187, 237)
HSL	hsl(198, 83%, 59%)
HSV	hsv(198, 72%, 93%)
CMYK	cmyk(72.2%, 21.1%, 0%, 7.1%)
CIE-LAB	lab(71.43, -17.44, -34.50)
CIE-LCH	lch(71.43, 38.66, 243.19°)
OKLab	oklab(74.62% -0.0819 -0.0969)
OKLCH	oklch(74.62% 0.127 229.8)
XYZ	xyz(35.2970, 42.8092, 86.5071)
Luminance	0.4281 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBED #ED7442

analogous

#42EDCA #42BBED #4266ED

triadic

#42BBED #ED42BB #BBED42

tetradic

#42BBED #CA42ED #ED7442 #66ED42

square

#42BBED #CA42ED #ED7442 #66ED42

split-complementary

#42BBED #ED4266 #EDCA42

monochromatic

#1079A5 #15A2DD #42BBED #7ACFF2 #B2E3F8

Accessibility & contrast

On white

2.20

#42BBED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.56

#42BBED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBED

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBED	#FFFFFF	#000000	##000000
##42BBED	1.00	2.20	9.56	9.56
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.56	21.00	1.00	1.00
##000000	9.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B8EF

Deuteranopia (green-blind)

#8AA8EC

Tritanopia (blue-blind)

#00C9CC

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42bbed;
/* rgb */ color: rgb(66, 187, 237);
/* oklch */ color: oklch(74.6% 0.127 229.8);

Tailwind

colors: {
  custom: {
    50: '#8ccff3',
    500: '#42bbed',
    950: '#000000',
  },
}

SCSS

$custom: #42bbed;
$custom-light: #8ccff3;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbed",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 237
  },
  "hsl": {
    "h": 197.544,
    "s": 82.609,
    "l": 59.412
  },
  "oklch": {
    "l": 0.74619,
    "c": 0.12688,
    "h": 229.8
  },
  "luminance": 0.42813
}

Semantic roles & 50–950 ramp

primary

#42BBED

secondary

#E7B8A4

accent

#6A2FF9

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #42BBED

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

Preview Lab → · Contrast checker → · Palette generator →