#3B409E#3B409E

#3B409E is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.4% C 0.150 H 275.7°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#3B409E
RGB	rgb(59, 64, 158)
HSL	hsl(237, 46%, 43%)
HSV	hsv(237, 63%, 62%)
CMYK	cmyk(62.7%, 59.5%, 0%, 38%)
CIE-LAB	lab(31.95, 27.82, -51.92)
CIE-LCH	lch(31.95, 58.90, 298.18°)
OKLab	oklab(42.45% 0.0148 -0.1493)
OKLCH	oklch(42.45% 0.15 275.7)
XYZ	xyz(9.8066, 7.0644, 33.1879)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B409E #9E993B

analogous

#3B719E #3B409E #683B9E

triadic

#3B409E #9E3B40 #409E3B

tetradic

#3B409E #9E3B71 #9E993B #3B9E68

square

#3B409E #9E3B71 #9E993B #3B9E68

split-complementary

#3B409E #9E683B #719E3B

monochromatic

#1A1C45 #2A2E71 #3B409E #565CC0 #8387D1

Accessibility & contrast

On white

8.70

#3B409E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3B409E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B409E

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B409E	#FFFFFF	#000000	##FFFFFF
##3B409E	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A1

Deuteranopia (green-blind)

#00479C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3b409e;
/* rgb */ color: rgb(59, 64, 158);
/* oklch */ color: oklch(42.4% 0.150 275.7);

Tailwind

colors: {
  custom: {
    50: '#7c75bb',
    500: '#3b409e',
    950: '#000000',
  },
}

SCSS

$custom: #3b409e;
$custom-light: #7c75bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b409e",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 158
  },
  "hsl": {
    "h": 236.97,
    "s": 45.622,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4245,
    "c": 0.15,
    "h": 275.7
  },
  "luminance": 0.07065
}

Semantic roles & 50–950 ramp

primary

#3B409E

secondary

#BBB77A

accent

#CF53D5

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3B409E

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

Preview Lab → · Contrast checker → · Palette generator →