#3929B1#3929B1

#3929B1 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.201 H 277.7°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#3929B1
RGB	rgb(57, 41, 177)
HSL	hsl(247, 62%, 43%)
HSV	hsv(247, 77%, 69%)
CMYK	cmyk(67.8%, 76.8%, 0%, 30.6%)
CIE-LAB	lab(28.46, 47.63, -69.08)
CIE-LCH	lch(28.46, 83.91, 304.58°)
OKLab	oklab(40.42% 0.027 -0.1996)
OKLCH	oklch(40.42% 0.201 277.7)
XYZ	xyz(10.4135, 5.6292, 42.1242)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3929B1 #A1B129

analogous

#295DB1 #3929B1 #7D29B1

triadic

#3929B1 #B13929 #29B139

tetradic

#3929B1 #B1295D #A1B129 #29B17D

square

#3929B1 #B1295D #A1B129 #29B17D

split-complementary

#3929B1 #B17D29 #5DB129

monochromatic

#19124E #291D7F #3929B1 #5544D4 #8275DF

Accessibility & contrast

On white

9.88

#3929B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3929B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3929B1

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3929B1	#FFFFFF	#000000	##FFFFFF
##3929B1	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B5

Deuteranopia (green-blind)

#003DAF

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3929b1;
/* rgb */ color: rgb(57, 41, 177);
/* oklch */ color: oklch(40.4% 0.201 277.7);

Tailwind

colors: {
  custom: {
    50: '#8166ca',
    500: '#3929b1',
    950: '#000000',
  },
}

SCSS

$custom: #3929b1;
$custom-light: #8166ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3929b1",
  "rgb": {
    "r": 57,
    "g": 41,
    "b": 177
  },
  "hsl": {
    "h": 247.059,
    "s": 62.385,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40415,
    "c": 0.20139,
    "h": 277.7
  },
  "luminance": 0.0563
}

Semantic roles & 50–950 ramp

primary

#3929B1

secondary

#BCC76F

accent

#E542D2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3929B1

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

Preview Lab → · Contrast checker → · Palette generator →