#3929AB#3929AB

#3929AB is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.8% C 0.194 H 278.4°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#3929AB
RGB	rgb(57, 41, 171)
HSL	hsl(247, 61%, 42%)
HSV	hsv(247, 76%, 67%)
CMYK	cmyk(66.7%, 76%, 0%, 32.9%)
CIE-LAB	lab(27.83, 45.75, -66.52)
CIE-LCH	lch(27.83, 80.73, 304.52°)
OKLab	oklab(39.79% 0.0284 -0.1921)
OKLCH	oklch(39.79% 0.194 278.4)
XYZ	xyz(9.8286, 5.3952, 39.0436)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3929AB #9BAB29

analogous

#295AAB #3929AB #7A29AB

triadic

#3929AB #AB3929 #29AB39

tetradic

#3929AB #AB295A #9BAB29 #29AB7A

square

#3929AB #AB295A #9BAB29 #29AB7A

split-complementary

#3929AB #AB7A29 #5AAB29

monochromatic

#181148 #291D7A #3929AB #5240D1 #7F71DD

Accessibility & contrast

On white

10.10

#3929AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3929AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3929AB

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3929AB	#FFFFFF	#000000	##FFFFFF
##3929AB	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AF

Deuteranopia (green-blind)

#003CA9

Tritanopia (blue-blind)

#004F68

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3929ab;
/* rgb */ color: rgb(57, 41, 171);
/* oklch */ color: oklch(39.8% 0.194 278.4);

Tailwind

colors: {
  custom: {
    50: '#7f66c5',
    500: '#3929ab',
    950: '#000000',
  },
}

SCSS

$custom: #3929ab;
$custom-light: #7f66c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3929ab",
  "rgb": {
    "r": 57,
    "g": 41,
    "b": 171
  },
  "hsl": {
    "h": 247.385,
    "s": 61.321,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39789,
    "c": 0.1942,
    "h": 278.4
  },
  "luminance": 0.05396
}

Semantic roles & 50–950 ramp

primary

#3929AB

secondary

#B9C46C

accent

#E443D1

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3929AB

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

Preview Lab → · Contrast checker → · Palette generator →