#3F288B#3F288B

#3F288B is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.0% C 0.155 H 286.9°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F288B
RGB	rgb(63, 40, 139)
HSL	hsl(254, 55%, 35%)
HSV	hsv(254, 71%, 55%)
CMYK	cmyk(54.7%, 71.2%, 0%, 45.5%)
CIE-LAB	lab(25.07, 37.12, -51.47)
CIE-LCH	lch(25.07, 63.46, 305.80°)
OKLab	oklab(37.02% 0.0449 -0.1479)
OKLCH	oklch(37.02% 0.155 286.9)
XYZ	xyz(7.4675, 4.4380, 24.8842)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F288B #748B28

analogous

#28438B #3F288B #70288B

triadic

#3F288B #8B3F28 #288B3F

tetradic

#3F288B #8B2843 #748B28 #288B70

square

#3F288B #8B2843 #748B28 #288B70

split-complementary

#3F288B #8B7028 #438B28

monochromatic

#140D2C #291A5B #3F288B #5536BB #785DD0

Accessibility & contrast

On white

11.13

#3F288B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#3F288B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F288B

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F288B	#FFFFFF	#000000	##FFFFFF
##3F288B	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#204256

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #3f288b;
/* rgb */ color: rgb(63, 40, 139);
/* oklch */ color: oklch(37.0% 0.155 286.9);

Tailwind

colors: {
  custom: {
    50: '#7c64ae',
    500: '#3f288b',
    950: '#000000',
  },
}

SCSS

$custom: #3f288b;
$custom-light: #7c64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f288b",
  "rgb": {
    "r": 63,
    "g": 40,
    "b": 139
  },
  "hsl": {
    "h": 253.939,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37022,
    "c": 0.15456,
    "h": 286.9
  },
  "luminance": 0.04438
}

Semantic roles & 50–950 ramp

primary

#3F288B

secondary

#A0B659

accent

#DF49BC

background

#F8F6FA

surface

#EFEBF4

border

#CAC6CE

text

#0A0510

muted

#7C7A7F

Preview Lab

Preview with #3F288B

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

Preview Lab → · Contrast checker → · Palette generator →