#3931A4#3931A4

#3931A4 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.177 H 278.0°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#3931A4
RGB	rgb(57, 49, 164)
HSL	hsl(244, 54%, 42%)
HSV	hsv(244, 70%, 64%)
CMYK	cmyk(65.2%, 70.1%, 0%, 35.7%)
CIE-LAB	lab(28.76, 38.97, -60.77)
CIE-LCH	lch(28.76, 72.19, 302.67°)
OKLab	oklab(40.24% 0.0245 -0.1753)
OKLCH	oklch(40.24% 0.177 278)
XYZ	xyz(9.4843, 5.7460, 35.7241)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.49

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931A4 #9CA431

analogous

#3163A4 #3931A4 #7331A4

triadic

#3931A4 #A43931 #31A439

tetradic

#3931A4 #A43163 #9CA431 #31A473

square

#3931A4 #A43163 #9CA431 #31A473

split-complementary

#3931A4 #A47331 #63A431

monochromatic

#181546 #292375 #3931A4 #5249C9 #7F79D7

Accessibility & contrast

On white

9.77

#3931A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3931A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931A4

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931A4	#FFFFFF	#000000	##FFFFFF
##3931A4	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A7

Deuteranopia (green-blind)

#003FA2

Tritanopia (blue-blind)

#005067

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3931a4;
/* rgb */ color: rgb(57, 49, 164);
/* oklch */ color: oklch(40.2% 0.177 278.0);

Tailwind

colors: {
  custom: {
    50: '#7d6ac0',
    500: '#3931a4',
    950: '#000000',
  },
}

SCSS

$custom: #3931a4;
$custom-light: #7d6ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#3931a4",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 164
  },
  "hsl": {
    "h": 244.174,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40243,
    "c": 0.17705,
    "h": 278
  },
  "luminance": 0.05747
}

Semantic roles & 50–950 ramp

primary

#3931A4

secondary

#BABF72

accent

#DD4AD3

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3931A4

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

Preview Lab → · Contrast checker → · Palette generator →