#3928B2#3928B2

#3928B2 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.203 H 277.7°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#3928B2
RGB	rgb(57, 40, 178)
HSL	hsl(247, 63%, 43%)
HSV	hsv(247, 78%, 70%)
CMYK	cmyk(68%, 77.5%, 0%, 30.2%)
CIE-LAB	lab(28.38, 48.45, -69.80)
CIE-LCH	lch(28.38, 84.97, 304.77°)
OKLab	oklab(40.39% 0.0272 -0.2017)
OKLCH	oklch(40.39% 0.204 277.7)
XYZ	xyz(10.4794, 5.6009, 42.6397)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3928B2 #A1B228

analogous

#285CB2 #3928B2 #7E28B2

triadic

#3928B2 #B23928 #28B239

tetradic

#3928B2 #B2285C #A1B228 #28B27E

square

#3928B2 #B2285C #A1B228 #28B27E

split-complementary

#3928B2 #B27E28 #5CB228

monochromatic

#19124E #291D80 #3928B2 #5543D5 #8275E0

Accessibility & contrast

On white

9.90

#3928B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3928B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3928B2

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3928B2	#FFFFFF	#000000	##FFFFFF
##3928B2	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B6

Deuteranopia (green-blind)

#003DB0

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3928b2;
/* rgb */ color: rgb(57, 40, 178);
/* oklch */ color: oklch(40.4% 0.203 277.7);

Tailwind

colors: {
  custom: {
    50: '#8165ca',
    500: '#3928b2',
    950: '#000000',
  },
}

SCSS

$custom: #3928b2;
$custom-light: #8165ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3928b2",
  "rgb": {
    "r": 57,
    "g": 40,
    "b": 178
  },
  "hsl": {
    "h": 247.391,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40394,
    "c": 0.2035,
    "h": 277.7
  },
  "luminance": 0.05602
}

Semantic roles & 50–950 ramp

primary

#3928B2

secondary

#BCC76F

accent

#E641D2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3928B2

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

Preview Lab → · Contrast checker → · Palette generator →