#3C409A#3C409A

#3C409A is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.2% C 0.144 H 276.4°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#3C409A
RGB	rgb(60, 64, 154)
HSL	hsl(237, 44%, 42%)
HSV	hsv(237, 61%, 60%)
CMYK	cmyk(61%, 58.4%, 0%, 39.6%)
CIE-LAB	lab(31.72, 26.60, -49.88)
CIE-LCH	lch(31.72, 56.53, 298.07°)
OKLab	oklab(42.2% 0.016 -0.1432)
OKLCH	oklch(42.2% 0.144 276.4)
XYZ	xyz(9.5277, 6.9598, 31.4069)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C409A #9A963C

analogous

#3C6F9A #3C409A #673C9A

triadic

#3C409A #9A3C40 #409A3C

tetradic

#3C409A #9A3C6F #9A963C #3C9A67

square

#3C409A #9A3C6F #9A963C #3C9A67

split-complementary

#3C409A #9A673C #6F9A3C

monochromatic

#1A1B42 #2B2E6E #3C409A #565ABD #8285CE

Accessibility & contrast

On white

8.78

#3C409A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3C409A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C409A

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C409A	#FFFFFF	#000000	##FFFFFF
##3C409A	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9D

Deuteranopia (green-blind)

#004798

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3c409a;
/* rgb */ color: rgb(60, 64, 154);
/* oklch */ color: oklch(42.2% 0.144 276.4);

Tailwind

colors: {
  custom: {
    50: '#7b74b8',
    500: '#3c409a',
    950: '#000000',
  },
}

SCSS

$custom: #3c409a;
$custom-light: #7b74b8;
$custom-dark: #000000;

JSON

{
  "hex": "#3c409a",
  "rgb": {
    "r": 60,
    "g": 64,
    "b": 154
  },
  "hsl": {
    "h": 237.447,
    "s": 43.925,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42195,
    "c": 0.14413,
    "h": 276.4
  },
  "luminance": 0.06961
}

Semantic roles & 50–950 ramp

primary

#3C409A

secondary

#B8B67A

accent

#CE54D4

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3C409A

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

Preview Lab → · Contrast checker → · Palette generator →