#3928B1#3928B1

#3928B1 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.3% C 0.202 H 277.8°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#3928B1
RGB	rgb(57, 40, 177)
HSL	hsl(247, 63%, 43%)
HSV	hsv(247, 77%, 69%)
CMYK	cmyk(67.8%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(28.28, 48.14, -69.38)
CIE-LCH	lch(28.28, 84.45, 304.76°)
OKLab	oklab(40.29% 0.0275 -0.2004)
OKLCH	oklch(40.29% 0.202 277.8)
XYZ	xyz(10.3794, 5.5609, 42.1128)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3928B1 #A0B128

analogous

#285CB1 #3928B1 #7D28B1

triadic

#3928B1 #B13928 #28B139

tetradic

#3928B1 #B1285C #A0B128 #28B17D

square

#3928B1 #B1285C #A0B128 #28B17D

split-complementary

#3928B1 #B17D28 #5CB128

monochromatic

#19114D #291D7F #3928B1 #5442D4 #8174E0

Accessibility & contrast

On white

9.94

#3928B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3928B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3928B1

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3928B1	#FFFFFF	#000000	##FFFFFF
##3928B1	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003DAF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3928b1;
/* rgb */ color: rgb(57, 40, 177);
/* oklch */ color: oklch(40.3% 0.202 277.8);

Tailwind

colors: {
  custom: {
    50: '#8165ca',
    500: '#3928b1',
    950: '#000000',
  },
}

SCSS

$custom: #3928b1;
$custom-light: #8165ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3928b1",
  "rgb": {
    "r": 57,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 247.445,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40288,
    "c": 0.20231,
    "h": 277.8
  },
  "luminance": 0.05562
}

Semantic roles & 50–950 ramp

primary

#3928B1

secondary

#BCC76E

accent

#E642D2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3928B1

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

Preview Lab → · Contrast checker → · Palette generator →