#63389B#63389B

#63389B is a dark, vivid violet. Relative luminance 0.078; OKLCH L 44.5% C 0.155 H 300.1°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#63389B
RGB	rgb(99, 56, 155)
HSL	hsl(266, 47%, 41%)
HSV	hsv(266, 64%, 61%)
CMYK	cmyk(36.1%, 63.9%, 0%, 39.2%)
CIE-LAB	lab(33.66, 40.03, -47.15)
CIE-LCH	lch(33.66, 61.85, 310.33°)
OKLab	oklab(44.54% 0.0778 -0.134)
OKLCH	oklch(44.54% 0.155 300.1)
XYZ	xyz(12.4747, 7.8475, 31.8615)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63389B #709B38

analogous

#383F9B #63389B #95389B

triadic

#63389B #9B6338 #389B63

tetradic

#63389B #9B383F #709B38 #389B95

square

#63389B #9B383F #709B38 #389B95

split-complementary

#63389B #9B9538 #3F9B38

monochromatic

#2A1841 #46286E #63389B #8150C0 #A17DD0

Accessibility & contrast

On white

8.17

#63389B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#63389B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63389B

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63389B	#FFFFFF	#000000	##FFFFFF
##63389B	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#104E99

Tritanopia (blue-blind)

#574E64

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #63389b;
/* rgb */ color: rgb(99, 56, 155);
/* oklch */ color: oklch(44.5% 0.155 300.1);

Tailwind

colors: {
  custom: {
    50: '#9471b9',
    500: '#63389b',
    950: '#000000',
  },
}

SCSS

$custom: #63389b;
$custom-light: #9471b9;
$custom-dark: #000000;

JSON

{
  "hex": "#63389b",
  "rgb": {
    "r": 99,
    "g": 56,
    "b": 155
  },
  "hsl": {
    "h": 266.061,
    "s": 46.919,
    "l": 41.373
  },
  "oklch": {
    "l": 0.4454,
    "c": 0.15495,
    "h": 300.1
  },
  "luminance": 0.07848
}

Semantic roles & 50–950 ramp

primary

#63389B

secondary

#9CB975

accent

#D7519D

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #63389B

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

Preview Lab → · Contrast checker → · Palette generator →