#3F3587#3F3587

#3F3587 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.8% C 0.132 H 284.0°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#3F3587
RGB	rgb(63, 53, 135)
HSL	hsl(247, 44%, 37%)
HSV	hsv(247, 61%, 53%)
CMYK	cmyk(53.3%, 60.7%, 0%, 47.1%)
CIE-LAB	lab(27.71, 27.88, -44.67)
CIE-LCH	lch(27.71, 52.66, 301.96°)
OKLab	oklab(38.84% 0.0318 -0.1279)
OKLCH	oklch(38.84% 0.132 284)
XYZ	xyz(7.6949, 5.3518, 23.5445)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3587 #7D8735

analogous

#355487 #3F3587 #683587

triadic

#3F3587 #873F35 #35873F

tetradic

#3F3587 #873554 #7D8735 #358768

square

#3F3587 #873554 #7D8735 #358768

split-complementary

#3F3587 #876835 #548735

monochromatic

#16122F #2A245B #3F3587 #5446B3 #7A70C7

Accessibility & contrast

On white

10.14

#3F3587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3F3587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3587

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3587	#FFFFFF	#000000	##FFFFFF
##3F3587	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448A

Deuteranopia (green-blind)

#003F85

Tritanopia (blue-blind)

#224858

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f3587;
/* rgb */ color: rgb(63, 53, 135);
/* oklch */ color: oklch(38.8% 0.132 284.0);

Tailwind

colors: {
  custom: {
    50: '#7b6cab',
    500: '#3f3587',
    950: '#000000',
  },
}

SCSS

$custom: #3f3587;
$custom-light: #7b6cab;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3587",
  "rgb": {
    "r": 63,
    "g": 53,
    "b": 135
  },
  "hsl": {
    "h": 247.317,
    "s": 43.617,
    "l": 36.863
  },
  "oklch": {
    "l": 0.38838,
    "c": 0.13181,
    "h": 284
  },
  "luminance": 0.05352
}

Semantic roles & 50–950 ramp

primary

#3F3587

secondary

#A6AF69

accent

#D354C4

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #3F3587

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

Preview Lab → · Contrast checker → · Palette generator →