#3C42BA#3C42BA

#3C42BA is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.3% C 0.185 H 274.0°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#3C42BA
RGB	rgb(60, 66, 186)
HSL	hsl(237, 51%, 48%)
HSV	hsv(237, 68%, 73%)
CMYK	cmyk(67.7%, 64.5%, 0%, 27.1%)
CIE-LAB	lab(34.80, 36.44, -63.98)
CIE-LCH	lch(34.80, 73.63, 299.66°)
OKLab	oklab(45.28% 0.0131 -0.1846)
OKLCH	oklch(45.28% 0.185 274)
XYZ	xyz(12.6717, 8.4011, 47.3986)
Luminance	0.0840 (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

#3C42BA #BAB43C

analogous

#3C81BA #3C42BA #753CBA

triadic

#3C42BA #BA3C42 #42BA3C

tetradic

#3C42BA #BA3C81 #BAB43C #3CBA75

square

#3C42BA #BA3C81 #BAB43C #3CBA75

split-complementary

#3C42BA #BA753C #81BA3C

monochromatic

#1E215D #2D328C #3C42BA #666BCE #9497DC

Accessibility & contrast

On white

7.83

#3C42BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3C42BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C42BA

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C42BA	#FFFFFF	#000000	##FFFFFF
##3C42BA	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3c42ba;
/* rgb */ color: rgb(60, 66, 186);
/* oklch */ color: oklch(45.3% 0.185 274.0);

Tailwind

colors: {
  custom: {
    50: '#8276d0',
    500: '#3c42ba',
    950: '#000000',
  },
}

SCSS

$custom: #3c42ba;
$custom-light: #8276d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3c42ba",
  "rgb": {
    "r": 60,
    "g": 66,
    "b": 186
  },
  "hsl": {
    "h": 237.143,
    "s": 51.22,
    "l": 48.235
  },
  "oklch": {
    "l": 0.45281,
    "c": 0.18511,
    "h": 274
  },
  "luminance": 0.08402
}

Semantic roles & 50–950 ramp

primary

#3C42BA

secondary

#C8C58A

accent

#D44DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3C42BA

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

Preview Lab → · Contrast checker → · Palette generator →