#3929BB#3929BB

#3929BB is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.5% C 0.213 H 276.6°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#3929BB
RGB	rgb(57, 41, 187)
HSL	hsl(247, 64%, 45%)
HSV	hsv(247, 78%, 73%)
CMYK	cmyk(69.5%, 78.1%, 0%, 26.7%)
CIE-LAB	lab(29.52, 50.71, -73.27)
CIE-LCH	lch(29.52, 89.11, 304.69°)
OKLab	oklab(41.47% 0.0245 -0.2118)
OKLCH	oklch(41.47% 0.213 276.6)
XYZ	xyz(11.4470, 6.0425, 47.5671)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3929BB #ABBB29

analogous

#2962BB #3929BB #8229BB

triadic

#3929BB #BB3929 #29BB39

tetradic

#3929BB #BB2962 #ABBB29 #29BB82

square

#3929BB #BB2962 #ABBB29 #29BB82

split-complementary

#3929BB #BB8229 #62BB29

monochromatic

#1A1357 #2A1E89 #3929BB #594AD7 #877CE2

Accessibility & contrast

On white

9.51

#3929BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3929BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3929BB

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3929BB	#FFFFFF	#000000	##FFFFFF
##3929BB	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CBF

Deuteranopia (green-blind)

#003FB8

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3929bb;
/* rgb */ color: rgb(57, 41, 187);
/* oklch */ color: oklch(41.5% 0.213 276.6);

Tailwind

colors: {
  custom: {
    50: '#8366d1',
    500: '#3929bb',
    950: '#000000',
  },
}

SCSS

$custom: #3929bb;
$custom-light: #8366d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3929bb",
  "rgb": {
    "r": 57,
    "g": 41,
    "b": 187
  },
  "hsl": {
    "h": 246.575,
    "s": 64.035,
    "l": 44.706
  },
  "oklch": {
    "l": 0.41474,
    "c": 0.21319,
    "h": 276.6
  },
  "luminance": 0.06044
}

Semantic roles & 50–950 ramp

primary

#3929BB

secondary

#C1CB75

accent

#E741D5

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #3929BB

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

Preview Lab → · Contrast checker → · Palette generator →