#3927A4#3927A4

#3927A4 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.8% C 0.188 H 279.6°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#3927A4
RGB	rgb(57, 39, 164)
HSL	hsl(249, 62%, 40%)
HSV	hsv(249, 76%, 64%)
CMYK	cmyk(65.2%, 76.2%, 0%, 35.7%)
CIE-LAB	lab(26.74, 44.63, -64.10)
CIE-LCH	lch(26.74, 78.10, 304.85°)
OKLab	oklab(38.8% 0.0313 -0.185)
OKLCH	oklch(38.8% 0.188 279.6)
XYZ	xyz(9.1116, 5.0005, 35.5998)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3927A4 #92A427

analogous

#2754A4 #3927A4 #7827A4

triadic

#3927A4 #A43927 #27A439

tetradic

#3927A4 #A42754 #92A427 #27A478

square

#3927A4 #A42754 #92A427 #27A478

split-complementary

#3927A4 #A47827 #54A427

monochromatic

#170F41 #281B73 #3927A4 #4E38D0 #7A6ADC

Accessibility & contrast

On white

10.50

#3927A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#3927A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3927A4

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3927A4	#FFFFFF	#000000	##FFFFFF
##3927A4	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A8

Deuteranopia (green-blind)

#003AA2

Tritanopia (blue-blind)

#004B64

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3927a4;
/* rgb */ color: rgb(57, 39, 164);
/* oklch */ color: oklch(38.8% 0.188 279.6);

Tailwind

colors: {
  custom: {
    50: '#7e64c0',
    500: '#3927a4',
    950: '#000000',
  },
}

SCSS

$custom: #3927a4;
$custom-light: #7e64c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3927a4",
  "rgb": {
    "r": 57,
    "g": 39,
    "b": 164
  },
  "hsl": {
    "h": 248.64,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38802,
    "c": 0.18767,
    "h": 279.6
  },
  "luminance": 0.05001
}

Semantic roles & 50–950 ramp

primary

#3927A4

secondary

#B4C265

accent

#E543CD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3927A4

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

Preview Lab → · Contrast checker → · Palette generator →