#3C43BB#3C43BB

#3C43BB is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.5% C 0.185 H 273.8°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#3C43BB
RGB	rgb(60, 67, 187)
HSL	hsl(237, 51%, 48%)
HSV	hsv(237, 68%, 73%)
CMYK	cmyk(67.9%, 64.2%, 0%, 26.7%)
CIE-LAB	lab(35.13, 36.16, -64.05)
CIE-LCH	lch(35.13, 73.55, 299.45°)
OKLab	oklab(45.54% 0.0123 -0.1848)
OKLCH	oklch(45.54% 0.185 273.8)
XYZ	xyz(12.8373, 8.5616, 47.9801)
Luminance	0.0856 (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

#3C43BB #BBB43C

analogous

#3C82BB #3C43BB #743CBB

triadic

#3C43BB #BB3C43 #43BB3C

tetradic

#3C43BB #BB3C82 #BBB43C #3CBB74

square

#3C43BB #BB3C82 #BBB43C #3CBB74

split-complementary

#3C43BB #BB743C #82BB3C

monochromatic

#1E225E #2D328D #3C43BB #666CCE #9599DD

Accessibility & contrast

On white

7.74

#3C43BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3C43BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C43BB

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C43BB	#FFFFFF	#000000	##FFFFFF
##3C43BB	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004DB9

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3c43bb;
/* rgb */ color: rgb(60, 67, 187);
/* oklch */ color: oklch(45.5% 0.185 273.8);

Tailwind

colors: {
  custom: {
    50: '#8277d0',
    500: '#3c43bb',
    950: '#000000',
  },
}

SCSS

$custom: #3c43bb;
$custom-light: #8277d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3c43bb",
  "rgb": {
    "r": 60,
    "g": 67,
    "b": 187
  },
  "hsl": {
    "h": 236.693,
    "s": 51.417,
    "l": 48.431
  },
  "oklch": {
    "l": 0.45542,
    "c": 0.18524,
    "h": 273.8
  },
  "luminance": 0.08563
}

Semantic roles & 50–950 ramp

primary

#3C43BB

secondary

#C8C58B

accent

#D34DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3C43BB

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

Preview Lab → · Contrast checker → · Palette generator →