#3B409D#3B409D

#3B409D is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.149 H 275.7°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#3B409D
RGB	rgb(59, 64, 157)
HSL	hsl(237, 45%, 42%)
HSV	hsv(237, 62%, 62%)
CMYK	cmyk(62.4%, 59.2%, 0%, 38.4%)
CIE-LAB	lab(31.88, 27.46, -51.44)
CIE-LCH	lch(31.88, 58.31, 298.10°)
OKLab	oklab(42.37% 0.0148 -0.1479)
OKLCH	oklch(42.37% 0.149 275.7)
XYZ	xyz(9.7208, 7.0302, 32.7364)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B409D #9D983B

analogous

#3B719D #3B409D #673B9D

triadic

#3B409D #9D3B40 #409D3B

tetradic

#3B409D #9D3B71 #9D983B #3B9D67

square

#3B409D #9D3B71 #9D983B #3B9D67

split-complementary

#3B409D #9D673B #719D3B

monochromatic

#1A1C44 #2A2E71 #3B409D #565BBF #8286D0

Accessibility & contrast

On white

8.73

#3B409D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3B409D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B409D

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B409D	#FFFFFF	#000000	##FFFFFF
##3B409D	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA0

Deuteranopia (green-blind)

#00479B

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3b409d;
/* rgb */ color: rgb(59, 64, 157);
/* oklch */ color: oklch(42.4% 0.149 275.7);

Tailwind

colors: {
  custom: {
    50: '#7b74bb',
    500: '#3b409d',
    950: '#000000',
  },
}

SCSS

$custom: #3b409d;
$custom-light: #7b74bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b409d",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 157
  },
  "hsl": {
    "h": 236.939,
    "s": 45.37,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42368,
    "c": 0.1486,
    "h": 275.7
  },
  "luminance": 0.07031
}

Semantic roles & 50–950 ramp

primary

#3B409D

secondary

#BAB77A

accent

#CE53D5

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3B409D

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

Preview Lab → · Contrast checker → · Palette generator →