#3B3DB8#3B3DB8

#3B3DB8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.189 H 274.8°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#3B3DB8
RGB	rgb(59, 61, 184)
HSL	hsl(239, 51%, 48%)
HSV	hsv(239, 68%, 72%)
CMYK	cmyk(67.9%, 66.8%, 0%, 27.8%)
CIE-LAB	lab(33.41, 38.71, -65.09)
CIE-LCH	lch(33.41, 75.73, 300.74°)
OKLab	oklab(44.19% 0.0157 -0.1879)
OKLCH	oklch(44.19% 0.189 274.8)
XYZ	xyz(12.1212, 7.7269, 46.1908)
Luminance	0.0773 (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

#3B3DB8 #B8B63B

analogous

#3B7BB8 #3B3DB8 #773BB8

triadic

#3B3DB8 #B83B3D #3DB83B

tetradic

#3B3DB8 #B83B7B #B8B63B #3BB877

square

#3B3DB8 #B83B7B #B8B63B #3BB877

split-complementary

#3B3DB8 #B8773B #7BB83B

monochromatic

#1D1E5B #2C2E8A #3B3DB8 #6365CD #9293DC

Accessibility & contrast

On white

8.25

#3B3DB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3B3DB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B3DB8

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B3DB8	#FFFFFF	#000000	##FFFFFF
##3B3DB8	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BC

Deuteranopia (green-blind)

#0049B6

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3b3db8;
/* rgb */ color: rgb(59, 61, 184);
/* oklch */ color: oklch(44.2% 0.189 274.8);

Tailwind

colors: {
  custom: {
    50: '#8173ce',
    500: '#3b3db8',
    950: '#000000',
  },
}

SCSS

$custom: #3b3db8;
$custom-light: #8173ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3b3db8",
  "rgb": {
    "r": 59,
    "g": 61,
    "b": 184
  },
  "hsl": {
    "h": 239.04,
    "s": 51.44,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44193,
    "c": 0.18861,
    "h": 274.8
  },
  "luminance": 0.07728
}

Semantic roles & 50–950 ramp

primary

#3B3DB8

secondary

#C7C688

accent

#D94DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3B3DB8

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

Preview Lab → · Contrast checker → · Palette generator →