#3C42C8#3C42C8

#3C42C8 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.6% C 0.203 H 273.3°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#3C42C8
RGB	rgb(60, 66, 200)
HSL	hsl(237, 56%, 51%)
HSV	hsv(237, 70%, 78%)
CMYK	cmyk(70%, 67%, 0%, 21.6%)
CIE-LAB	lab(36.03, 41.23, -70.17)
CIE-LCH	lch(36.03, 81.39, 300.44°)
OKLab	oklab(46.55% 0.0118 -0.2028)
OKLCH	oklch(46.55% 0.203 273.3)
XYZ	xyz(14.2335, 9.0258, 55.6244)
Luminance	0.0903 (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

#3C42C8 #C8C23C

analogous

#3C88C8 #3C42C8 #7C3CC8

triadic

#3C42C8 #C83C42 #42C83C

tetradic

#3C42C8 #C83C88 #C8C23C #3CC87C

square

#3C42C8 #C83C88 #C8C23C #3CC87C

split-complementary

#3C42C8 #C87C3C #88C83C

monochromatic

#1E226B #2C319B #3C42C8 #6C70D5 #9B9FE3

Accessibility & contrast

On white

7.49

#3C42C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#3C42C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C42C8

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C42C8	#FFFFFF	#000000	##FFFFFF
##3C42C8	1.00	7.49	2.81	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCC

Deuteranopia (green-blind)

#004EC5

Tritanopia (blue-blind)

#00667F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3c42c8;
/* rgb */ color: rgb(60, 66, 200);
/* oklch */ color: oklch(46.6% 0.203 273.3);

Tailwind

colors: {
  custom: {
    50: '#8577da',
    500: '#3c42c8',
    950: '#000000',
  },
}

SCSS

$custom: #3c42c8;
$custom-light: #8577da;
$custom-dark: #000000;

JSON

{
  "hex": "#3c42c8",
  "rgb": {
    "r": 60,
    "g": 66,
    "b": 200
  },
  "hsl": {
    "h": 237.429,
    "s": 56,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46553,
    "c": 0.20311,
    "h": 273.3
  },
  "luminance": 0.09027
}

Semantic roles & 50–950 ramp

primary

#3C42C8

secondary

#CFCC91

accent

#D949DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3C42C8

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

Preview Lab → · Contrast checker → · Palette generator →