#3C42BF#3C42BF

#3C42BF is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.192 H 273.8°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#3C42BF
RGB	rgb(60, 66, 191)
HSL	hsl(237, 52%, 49%)
HSV	hsv(237, 69%, 75%)
CMYK	cmyk(68.6%, 65.4%, 0%, 25.1%)
CIE-LAB	lab(35.24, 38.16, -66.21)
CIE-LCH	lch(35.24, 76.42, 299.96°)
OKLab	oklab(45.73% 0.0127 -0.1912)
OKLCH	oklch(45.73% 0.192 273.8)
XYZ	xyz(13.2125, 8.6174, 50.2471)
Luminance	0.0862 (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

#3C42BF #BFB93C

analogous

#3C84BF #3C42BF #783CBF

triadic

#3C42BF #BF3C42 #42BF3C

tetradic

#3C42BF #BF3C84 #BFB93C #3CBF78

square

#3C42BF #BF3C84 #BFB93C #3CBF78

split-complementary

#3C42BF #BF783C #84BF3C

monochromatic

#1F2262 #2D3290 #3C42BF #686DD0 #979ADE

Accessibility & contrast

On white

7.71

#3C42BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3C42BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C42BF

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C42BF	#FFFFFF	#000000	##FFFFFF
##3C42BF	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C3

Deuteranopia (green-blind)

#004DBD

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3c42bf;
/* rgb */ color: rgb(60, 66, 191);
/* oklch */ color: oklch(45.7% 0.192 273.8);

Tailwind

colors: {
  custom: {
    50: '#8377d3',
    500: '#3c42bf',
    950: '#000000',
  },
}

SCSS

$custom: #3c42bf;
$custom-light: #8377d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3c42bf",
  "rgb": {
    "r": 60,
    "g": 66,
    "b": 191
  },
  "hsl": {
    "h": 237.252,
    "s": 52.191,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4573,
    "c": 0.19161,
    "h": 273.8
  },
  "luminance": 0.08619
}

Semantic roles & 50–950 ramp

primary

#3C42BF

secondary

#CAC78D

accent

#D54CDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3C42BF

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

Preview Lab → · Contrast checker → · Palette generator →