#3B41B8#3B41B8

#3B41B8 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.184 H 274.0°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3B41B8
RGB	rgb(59, 65, 184)
HSL	hsl(237, 51%, 48%)
HSV	hsv(237, 68%, 72%)
CMYK	cmyk(67.9%, 64.7%, 0%, 27.8%)
CIE-LAB	lab(34.33, 36.24, -63.57)
CIE-LCH	lch(34.33, 73.18, 299.68°)
OKLab	oklab(44.87% 0.0128 -0.1835)
OKLCH	oklch(44.87% 0.184 274)
XYZ	xyz(12.3428, 8.1700, 46.2646)
Luminance	0.0817 (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

#3B41B8 #B8B23B

analogous

#3B7FB8 #3B41B8 #733BB8

triadic

#3B41B8 #B83B41 #41B83B

tetradic

#3B41B8 #B83B7F #B8B23B #3BB873

square

#3B41B8 #B83B7F #B8B23B #3BB873

split-complementary

#3B41B8 #B8733B #7FB83B

monochromatic

#1D205B #2C318A #3B41B8 #6368CD #9295DC

Accessibility & contrast

On white

7.97

#3B41B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3B41B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B41B8

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B41B8	#FFFFFF	#000000	##FFFFFF
##3B41B8	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BC

Deuteranopia (green-blind)

#004BB6

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3b41b8;
/* rgb */ color: rgb(59, 65, 184);
/* oklch */ color: oklch(44.9% 0.184 274.0);

Tailwind

colors: {
  custom: {
    50: '#8176ce',
    500: '#3b41b8',
    950: '#000000',
  },
}

SCSS

$custom: #3b41b8;
$custom-light: #8176ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3b41b8",
  "rgb": {
    "r": 59,
    "g": 65,
    "b": 184
  },
  "hsl": {
    "h": 237.12,
    "s": 51.44,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44868,
    "c": 0.18394,
    "h": 274
  },
  "luminance": 0.08171
}

Semantic roles & 50–950 ramp

primary

#3B41B8

secondary

#C7C488

accent

#D44DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3B41B8

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

Preview Lab → · Contrast checker → · Palette generator →