#3F288C#3F288C

#3F288C is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.1% C 0.156 H 286.7°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F288C
RGB	rgb(63, 40, 140)
HSL	hsl(254, 56%, 35%)
HSV	hsv(254, 71%, 55%)
CMYK	cmyk(55%, 71.4%, 0%, 45.1%)
CIE-LAB	lab(25.16, 37.43, -51.94)
CIE-LCH	lch(25.16, 64.03, 305.78°)
OKLab	oklab(37.11% 0.0447 -0.1493)
OKLCH	oklch(37.11% 0.156 286.7)
XYZ	xyz(7.5409, 4.4674, 25.2708)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F288C #758C28

analogous

#28438C #3F288C #71288C

triadic

#3F288C #8C3F28 #288C3F

tetradic

#3F288C #8C2843 #758C28 #288C71

square

#3F288C #8C2843 #758C28 #288C71

split-complementary

#3F288C #8C7128 #438C28

monochromatic

#140D2D #2A1A5C #3F288C #5436BC #785ED1

Accessibility & contrast

On white

11.09

#3F288C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#3F288C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F288C

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F288C	#FFFFFF	#000000	##FFFFFF
##3F288C	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8F

Deuteranopia (green-blind)

#00398A

Tritanopia (blue-blind)

#1F4257

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #3f288c;
/* rgb */ color: rgb(63, 40, 140);
/* oklch */ color: oklch(37.1% 0.156 286.7);

Tailwind

colors: {
  custom: {
    50: '#7c64ae',
    500: '#3f288c',
    950: '#000000',
  },
}

SCSS

$custom: #3f288c;
$custom-light: #7c64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f288c",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 140
  },
  "hsl": {
    "h": 253.8,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37115,
    "c": 0.15585,
    "h": 286.7
  },
  "luminance": 0.04468
}

Semantic roles & 50–950 ramp

primary

#3F288C

secondary

#A1B65A

accent

#DF49BC

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0A0510

muted

#7C7A7F

Preview Lab

Preview with #3F288C

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

Preview Lab → · Contrast checker → · Palette generator →