#42ACFA#42ACFA

#42ACFA is a light, vivid cyan. Relative luminance 0.376; OKLCH L 71.8% C 0.149 H 244.6°. Best body text is #000000 at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#42ACFA
RGB	rgb(66, 172, 250)
HSL	hsl(205, 95%, 62%)
HSV	hsv(205, 74%, 98%)
CMYK	cmyk(73.6%, 31.2%, 0%, 2%)
CIE-LAB	lab(67.70, -4.96, -47.39)
CIE-LCH	lch(67.70, 47.65, 264.02°)
OKLab	oklab(71.84% -0.0639 -0.1343)
OKLCH	oklch(71.84% 0.149 244.6)
XYZ	xyz(34.2480, 37.5615, 95.8690)
Luminance	0.3756 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACFA #FA9042

analogous

#42FAEC #42ACFA #4250FA

triadic

#42ACFA #FA42AC #ACFA42

tetradic

#42ACFA #EC42FA #FA9042 #50FA42

square

#42ACFA #EC42FA #FA9042 #50FA42

split-complementary

#42ACFA #FA4250 #FAEC42

monochromatic

#056FBD #0792F8 #42ACFA #7EC6FC #B9E0FD

Accessibility & contrast

On white

2.47

#42ACFA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.51

#42ACFA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACFA

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACFA	#FFFFFF	#000000	##000000
##42ACFA	1.00	2.47	8.51	8.51
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.51	21.00	1.00	1.00
##000000	8.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88AEFD

Deuteranopia (green-blind)

#6E9DF9

Tritanopia (blue-blind)

#00BFC8

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #42acfa;
/* rgb */ color: rgb(66, 172, 250);
/* oklch */ color: oklch(71.8% 0.149 244.6);

Tailwind

colors: {
  custom: {
    50: '#8dc4fc',
    500: '#42acfa',
    950: '#000000',
  },
}

SCSS

$custom: #42acfa;
$custom-light: #8dc4fc;
$custom-dark: #000000;

JSON

{
  "hex": "#42acfa",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 250
  },
  "hsl": {
    "h": 205.435,
    "s": 94.845,
    "l": 61.961
  },
  "oklch": {
    "l": 0.71842,
    "c": 0.14875,
    "h": 244.6
  },
  "luminance": 0.37565
}

Semantic roles & 50–950 ramp

primary

#42ACFA

secondary

#EEC7AA

accent

#6100E6

background

#F9FCFF

surface

#F2F8FF

border

#CCD1D7

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #42ACFA

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

Preview Lab → · Contrast checker → · Palette generator →