#42A3C7#42A3C7

#42A3C7 is a light, moderate cyan. Relative luminance 0.315; OKLCH L 67.3% C 0.104 H 226.1°. Best body text is #000000 at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#42A3C7
RGB	rgb(66, 163, 199)
HSL	hsl(196, 54%, 52%)
HSV	hsv(196, 67%, 78%)
CMYK	cmyk(66.8%, 18.1%, 0%, 22%)
CIE-LAB	lab(62.91, -17.00, -26.77)
CIE-LCH	lch(62.91, 31.72, 237.58°)
OKLab	oklab(67.32% -0.0719 -0.0748)
OKLCH	oklch(67.32% 0.104 226.1)
XYZ	xyz(25.6486, 31.4734, 58.7450)
Luminance	0.3148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A3C7 #C76642

analogous

#42C7A9 #42A3C7 #4260C7

triadic

#42A3C7 #C742A3 #A3C742

tetradic

#42A3C7 #A942C7 #C76642 #60C742

square

#42A3C7 #A942C7 #C76642 #60C742

split-complementary

#42A3C7 #C74260 #C7A942

monochromatic

#21596E #2F7F9D #42A3C7 #71BAD5 #A0D1E3

Accessibility & contrast

On white

2.88

#42A3C7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.30

#42A3C7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A3C7

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A3C7	#FFFFFF	#000000	##000000
##42A3C7	1.00	2.88	7.30	7.30
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.30	21.00	1.00	1.00
##000000	7.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A0C9

Deuteranopia (green-blind)

#7D92C7

Tritanopia (blue-blind)

#00AEAF

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #42a3c7;
/* rgb */ color: rgb(66, 163, 199);
/* oklch */ color: oklch(67.3% 0.104 226.1);

Tailwind

colors: {
  custom: {
    50: '#85bed8',
    500: '#42a3c7',
    950: '#000000',
  },
}

SCSS

$custom: #42a3c7;
$custom-light: #85bed8;
$custom-dark: #000000;

JSON

{
  "hex": "#42a3c7",
  "rgb": {
    "r": 66,
    "g": 163,
    "b": 199
  },
  "hsl": {
    "h": 196.241,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.67317,
    "c": 0.10382,
    "h": 226.1
  },
  "luminance": 0.31476
}

Semantic roles & 50–950 ramp

primary

#42A3C7

secondary

#D0A595

accent

#724ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42A3C7

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

Preview Lab → · Contrast checker → · Palette generator →