#3C42BC#3C42BC

#3C42BC is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.188 H 273.9°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3C42BC
RGB	rgb(60, 66, 188)
HSL	hsl(237, 52%, 49%)
HSV	hsv(237, 68%, 74%)
CMYK	cmyk(68.1%, 64.9%, 0%, 26.3%)
CIE-LAB	lab(34.98, 37.13, -64.88)
CIE-LCH	lch(34.98, 74.75, 299.78°)
OKLab	oklab(45.46% 0.0129 -0.1873)
OKLCH	oklch(45.46% 0.188 273.9)
XYZ	xyz(12.8858, 8.4867, 48.5262)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C42BC #BCB63C

analogous

#3C82BC #3C42BC #763CBC

triadic

#3C42BC #BC3C42 #42BC3C

tetradic

#3C42BC #BC3C82 #BCB63C #3CBC76

square

#3C42BC #BC3C82 #BCB63C #3CBC76

split-complementary

#3C42BC #BC763C #82BC3C

monochromatic

#1E215F #2D328E #3C42BC #676CCE #9599DD

Accessibility & contrast

On white

7.78

#3C42BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3C42BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C42BC

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C42BC	#FFFFFF	#000000	##FFFFFF
##3C42BC	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C0

Deuteranopia (green-blind)

#004CBA

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3c42bc;
/* rgb */ color: rgb(60, 66, 188);
/* oklch */ color: oklch(45.5% 0.188 273.9);

Tailwind

colors: {
  custom: {
    50: '#8276d1',
    500: '#3c42bc',
    950: '#000000',
  },
}

SCSS

$custom: #3c42bc;
$custom-light: #8276d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3c42bc",
  "rgb": {
    "r": 60,
    "g": 66,
    "b": 188
  },
  "hsl": {
    "h": 237.188,
    "s": 51.613,
    "l": 48.627
  },
  "oklch": {
    "l": 0.4546,
    "c": 0.18773,
    "h": 273.9
  },
  "luminance": 0.08488
}

Semantic roles & 50–950 ramp

primary

#3C42BC

secondary

#C9C68B

accent

#D44DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3C42BC

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

Preview Lab → · Contrast checker → · Palette generator →