#3928B7#3928B7

#3928B7 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.9% C 0.209 H 277.1°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#3928B7
RGB	rgb(57, 40, 183)
HSL	hsl(247, 64%, 44%)
HSV	hsv(247, 78%, 72%)
CMYK	cmyk(68.9%, 78.1%, 0%, 28.2%)
CIE-LAB	lab(28.92, 49.99, -71.90)
CIE-LCH	lch(28.92, 87.57, 304.81°)
OKLab	oklab(40.92% 0.026 -0.2078)
OKLCH	oklch(40.92% 0.209 277.1)
XYZ	xyz(10.9906, 5.8054, 45.3319)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3928B7 #A6B728

analogous

#285EB7 #3928B7 #8028B7

triadic

#3928B7 #B73928 #28B739

tetradic

#3928B7 #B7285E #A6B728 #28B780

square

#3928B7 #B7285E #A6B728 #28B780

split-complementary

#3928B7 #B78028 #5EB728

monochromatic

#1A1253 #291D85 #3928B7 #5746D6 #8478E1

Accessibility & contrast

On white

9.72

#3928B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3928B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3928B7

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3928B7	#FFFFFF	#000000	##FFFFFF
##3928B7	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABB

Deuteranopia (green-blind)

#003EB4

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3928b7;
/* rgb */ color: rgb(57, 40, 183);
/* oklch */ color: oklch(40.9% 0.209 277.1);

Tailwind

colors: {
  custom: {
    50: '#8266ce',
    500: '#3928b7',
    950: '#000000',
  },
}

SCSS

$custom: #3928b7;
$custom-light: #8266ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3928b7",
  "rgb": {
    "r": 57,
    "g": 40,
    "b": 183
  },
  "hsl": {
    "h": 247.133,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40925,
    "c": 0.20939,
    "h": 277.1
  },
  "luminance": 0.05806
}

Semantic roles & 50–950 ramp

primary

#3928B7

secondary

#BFC972

accent

#E741D3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3928B7

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

Preview Lab → · Contrast checker → · Palette generator →