#3927AD#3927AD

#3927AD is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.7% C 0.198 H 278.4°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#3927AD
RGB	rgb(57, 39, 173)
HSL	hsl(248, 63%, 42%)
HSV	hsv(248, 77%, 68%)
CMYK	cmyk(67.1%, 77.5%, 0%, 32.2%)
CIE-LAB	lab(27.67, 47.42, -67.98)
CIE-LCH	lch(27.67, 82.88, 304.90°)
OKLab	oklab(39.74% 0.029 -0.1963)
OKLCH	oklch(39.74% 0.198 278.4)
XYZ	xyz(9.9533, 5.3372, 40.0327)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3927AD #9BAD27

analogous

#2758AD #3927AD #7C27AD

triadic

#3927AD #AD3927 #27AD39

tetradic

#3927AD #AD2758 #9BAD27 #27AD7C

square

#3927AD #AD2758 #9BAD27 #27AD7C

split-complementary

#3927AD #AD7C27 #58AD27

monochromatic

#181049 #291C7B #3927AD #523ED3 #7F70DF

Accessibility & contrast

On white

10.16

#3927AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3927AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3927AD

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3927AD	#FFFFFF	#000000	##FFFFFF
##3927AD	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B1

Deuteranopia (green-blind)

#003CAB

Tritanopia (blue-blind)

#004F69

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3927ad;
/* rgb */ color: rgb(57, 39, 173);
/* oklch */ color: oklch(39.7% 0.198 278.4);

Tailwind

colors: {
  custom: {
    50: '#8064c7',
    500: '#3927ad',
    950: '#000000',
  },
}

SCSS

$custom: #3927ad;
$custom-light: #8064c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3927ad",
  "rgb": {
    "r": 57,
    "g": 39,
    "b": 173
  },
  "hsl": {
    "h": 248.06,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39741,
    "c": 0.19848,
    "h": 278.4
  },
  "luminance": 0.05338
}

Semantic roles & 50–950 ramp

primary

#3927AD

secondary

#B9C66A

accent

#E642D0

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3927AD

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

Preview Lab → · Contrast checker → · Palette generator →