#51399B#51399B

#51399B is a dark, vivid violet. Relative luminance 0.070; OKLCH L 42.8% C 0.152 H 289.7°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#51399B
RGB	rgb(81, 57, 155)
HSL	hsl(255, 46%, 42%)
HSV	hsv(255, 63%, 61%)
CMYK	cmyk(47.7%, 63.2%, 0%, 39.2%)
CIE-LAB	lab(31.90, 35.49, -50.10)
CIE-LCH	lch(31.90, 61.39, 305.31°)
OKLab	oklab(42.8% 0.0512 -0.1433)
OKLCH	oklch(42.8% 0.152 289.7)
XYZ	xyz(10.7712, 7.0417, 31.7956)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51399B #839B39

analogous

#39529B #51399B #82399B

triadic

#51399B #9B5139 #399B51

tetradic

#51399B #9B3952 #839B39 #399B82

square

#51399B #9B3952 #839B39 #399B82

split-complementary

#51399B #9B8239 #529B39

monochromatic

#221842 #3A296E #51399B #6D52BF #927FD0

Accessibility & contrast

On white

8.72

#51399B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#51399B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51399B

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51399B	#FFFFFF	#000000	##FFFFFF
##51399B	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#395064

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #51399b;
/* rgb */ color: rgb(81, 57, 155);
/* oklch */ color: oklch(42.8% 0.152 289.7);

Tailwind

colors: {
  custom: {
    50: '#8871b9',
    500: '#51399b',
    950: '#000000',
  },
}

SCSS

$custom: #51399b;
$custom-light: #8871b9;
$custom-dark: #000000;

JSON

{
  "hex": "#51399b",
  "rgb": {
    "r": 81,
    "g": 57,
    "b": 155
  },
  "hsl": {
    "h": 254.694,
    "s": 46.226,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42802,
    "c": 0.15216,
    "h": 289.7
  },
  "luminance": 0.07042
}

Semantic roles & 50–950 ramp

primary

#51399B

secondary

#A9B977

accent

#D652B6

background

#F8F6FB

surface

#F0ECF6

border

#CBC7D0

text

#0C0712

muted

#7D7A81

Preview Lab

Preview with #51399B

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

Preview Lab → · Contrast checker → · Palette generator →