#3931B9#3931B9

#3931B9 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.3% C 0.203 H 275.9°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#3931B9
RGB	rgb(57, 49, 185)
HSL	hsl(244, 58%, 46%)
HSV	hsv(244, 74%, 73%)
CMYK	cmyk(69.2%, 73.5%, 0%, 27.5%)
CIE-LAB	lab(30.80, 45.85, -69.97)
CIE-LCH	lch(30.80, 83.65, 303.23°)
OKLab	oklab(42.32% 0.0208 -0.2022)
OKLCH	oklch(42.32% 0.203 275.9)
XYZ	xyz(11.5397, 6.5682, 46.5492)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931B9 #B1B931

analogous

#316DB9 #3931B9 #7D31B9

triadic

#3931B9 #B93931 #31B939

tetradic

#3931B9 #B9316D #B1B931 #31B97D

square

#3931B9 #B9316D #B1B931 #31B97D

split-complementary

#3931B9 #B97D31 #6DB931

monochromatic

#1B1758 #2A2489 #3931B9 #5D55D2 #8B86DF

Accessibility & contrast

On white

9.08

#3931B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3931B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931B9

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931B9	#FFFFFF	#000000	##FFFFFF
##3931B9	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBD

Deuteranopia (green-blind)

#0042B7

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3931b9;
/* rgb */ color: rgb(57, 49, 185);
/* oklch */ color: oklch(42.3% 0.203 275.9);

Tailwind

colors: {
  custom: {
    50: '#826bcf',
    500: '#3931b9',
    950: '#000000',
  },
}

SCSS

$custom: #3931b9;
$custom-light: #826bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3931b9",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 185
  },
  "hsl": {
    "h": 243.529,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42316,
    "c": 0.2033,
    "h": 275.9
  },
  "luminance": 0.06569
}

Semantic roles & 50–950 ramp

primary

#3931B9

secondary

#C4C87D

accent

#E146D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3931B9

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

Preview Lab → · Contrast checker → · Palette generator →