#3931BC#3931BC

#3931BC is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.6% C 0.207 H 275.6°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#3931BC
RGB	rgb(57, 49, 188)
HSL	hsl(243, 59%, 46%)
HSV	hsv(243, 74%, 74%)
CMYK	cmyk(69.7%, 73.9%, 0%, 26.3%)
CIE-LAB	lab(31.11, 46.81, -71.25)
CIE-LCH	lch(31.11, 85.25, 303.31°)
OKLab	oklab(42.62% 0.0202 -0.206)
OKLCH	oklch(42.62% 0.207 275.6)
XYZ	xyz(11.8598, 6.6962, 48.2347)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931BC #B4BC31

analogous

#316FBC #3931BC #7F31BC

triadic

#3931BC #BC3931 #31BC39

tetradic

#3931BC #BC316F #B4BC31 #31BC7F

square

#3931BC #BC316F #B4BC31 #31BC7F

split-complementary

#3931BC #BC7F31 #6FBC31

monochromatic

#1C185B #2A248B #3931BC #5E57D3 #8D88E0

Accessibility & contrast

On white

8.98

#3931BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3931BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931BC

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931BC	#FFFFFF	#000000	##FFFFFF
##3931BC	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC0

Deuteranopia (green-blind)

#0043B9

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3931bc;
/* rgb */ color: rgb(57, 49, 188);
/* oklch */ color: oklch(42.6% 0.207 275.6);

Tailwind

colors: {
  custom: {
    50: '#826bd1',
    500: '#3931bc',
    950: '#000000',
  },
}

SCSS

$custom: #3931bc;
$custom-light: #826bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3931bc",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 188
  },
  "hsl": {
    "h": 243.453,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42621,
    "c": 0.20695,
    "h": 275.6
  },
  "luminance": 0.06697
}

Semantic roles & 50–950 ramp

primary

#3931BC

secondary

#C5CA7F

accent

#E246D9

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3931BC

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

Preview Lab → · Contrast checker → · Palette generator →