#42A1C8#42A1C8

#42A1C8 is a light, moderate cyan. Relative luminance 0.308; OKLCH L 66.9% C 0.105 H 228.6°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#42A1C8
RGB	rgb(66, 161, 200)
HSL	hsl(197, 55%, 52%)
HSV	hsv(197, 67%, 78%)
CMYK	cmyk(67%, 19.5%, 0%, 21.6%)
CIE-LAB	lab(62.35, -15.61, -28.19)
CIE-LCH	lch(62.35, 32.22, 241.02°)
OKLab	oklab(66.89% -0.0695 -0.0789)
OKLCH	oklch(66.89% 0.105 228.6)
XYZ	xyz(25.4128, 30.8154, 59.2410)
Luminance	0.3082 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A1C8 #C86942

analogous

#42C8AC #42A1C8 #425EC8

triadic

#42A1C8 #C842A1 #A1C842

tetradic

#42A1C8 #AC42C8 #C86942 #5EC842

square

#42A1C8 #AC42C8 #C86942 #5EC842

split-complementary

#42A1C8 #C8425E #C8AC42

monochromatic

#20586F #2E7E9F #42A1C8 #71B9D6 #A1D0E4

Accessibility & contrast

On white

2.93

#42A1C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#42A1C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A1C8

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A1C8	#FFFFFF	#000000	##000000
##42A1C8	1.00	2.93	7.16	7.16
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.16	21.00	1.00	1.00
##000000	7.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D9ECA

Deuteranopia (green-blind)

#7A91C7

Tritanopia (blue-blind)

#00ACAE

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #42a1c8;
/* rgb */ color: rgb(66, 161, 200);
/* oklch */ color: oklch(66.9% 0.105 228.6);

Tailwind

colors: {
  custom: {
    50: '#85bcd8',
    500: '#42a1c8',
    950: '#000000',
  },
}

SCSS

$custom: #42a1c8;
$custom-light: #85bcd8;
$custom-dark: #000000;

JSON

{
  "hex": "#42a1c8",
  "rgb": {
    "r": 66,
    "g": 161,
    "b": 200
  },
  "hsl": {
    "h": 197.463,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.66888,
    "c": 0.10515,
    "h": 228.6
  },
  "luminance": 0.30818
}

Semantic roles & 50–950 ramp

primary

#42A1C8

secondary

#D0A796

accent

#754ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42A1C8

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

Preview Lab → · Contrast checker → · Palette generator →