#3B41B9#3B41B9

#3B41B9 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.185 H 273.9°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3B41B9
RGB	rgb(59, 65, 185)
HSL	hsl(237, 52%, 48%)
HSV	hsv(237, 68%, 73%)
CMYK	cmyk(68.1%, 64.9%, 0%, 27.5%)
CIE-LAB	lab(34.42, 36.59, -64.02)
CIE-LCH	lch(34.42, 73.74, 299.75°)
OKLab	oklab(44.96% 0.0127 -0.1848)
OKLCH	oklch(44.96% 0.185 273.9)
XYZ	xyz(12.4480, 8.2120, 46.8186)
Luminance	0.0821 (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

#3B41B9 #B9B33B

analogous

#3B80B9 #3B41B9 #743BB9

triadic

#3B41B9 #B93B41 #41B93B

tetradic

#3B41B9 #B93B80 #B9B33B #3BB974

square

#3B41B9 #B93B80 #B9B33B #3BB974

split-complementary

#3B41B9 #B9743B #80B93B

monochromatic

#1D205C #2C318B #3B41B9 #6469CD #9296DC

Accessibility & contrast

On white

7.95

#3B41B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3B41B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B41B9

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B41B9	#FFFFFF	#000000	##FFFFFF
##3B41B9	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004BB7

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3b41b9;
/* rgb */ color: rgb(59, 65, 185);
/* oklch */ color: oklch(45.0% 0.185 273.9);

Tailwind

colors: {
  custom: {
    50: '#8176cf',
    500: '#3b41b9',
    950: '#000000',
  },
}

SCSS

$custom: #3b41b9;
$custom-light: #8176cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b41b9",
  "rgb": {
    "r": 59,
    "g": 65,
    "b": 185
  },
  "hsl": {
    "h": 237.143,
    "s": 51.639,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44957,
    "c": 0.18524,
    "h": 273.9
  },
  "luminance": 0.08213
}

Semantic roles & 50–950 ramp

primary

#3B41B9

secondary

#C7C488

accent

#D44DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3B41B9

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

Preview Lab → · Contrast checker → · Palette generator →