#6333B3#6333B3

#6333B3 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.8% C 0.190 H 294.9°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#6333B3
RGB	rgb(99, 51, 179)
HSL	hsl(263, 56%, 45%)
HSV	hsv(263, 72%, 70%)
CMYK	cmyk(44.7%, 71.5%, 0%, 29.8%)
CIE-LAB	lab(34.55, 49.06, -60.12)
CIE-LCH	lch(34.55, 77.60, 309.22°)
OKLab	oklab(45.75% 0.0799 -0.1721)
OKLCH	oklch(45.75% 0.19 294.9)
XYZ	xyz(14.4639, 8.2746, 43.4742)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Rebeccapurple

#663399

ΔE00 4.39

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6333B3 #83B333

analogous

#3343B3 #6333B3 #A333B3

triadic

#6333B3 #B36333 #33B363

tetradic

#6333B3 #B33343 #83B333 #33B3A3

square

#6333B3 #B33343 #83B333 #33B3A3

split-complementary

#6333B3 #B3A333 #43B333

monochromatic

#2E1854 #492583 #6333B3 #8255CE #A584DC

Accessibility & contrast

On white

7.91

#6333B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#6333B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6333B3

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6333B3	#FFFFFF	#000000	##FFFFFF
##6333B3	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B7

Deuteranopia (green-blind)

#004FB0

Tritanopia (blue-blind)

#4D536F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #6333b3;
/* rgb */ color: rgb(99, 51, 179);
/* oklch */ color: oklch(45.8% 0.190 294.9);

Tailwind

colors: {
  custom: {
    50: '#966fcb',
    500: '#6333b3',
    950: '#000000',
  },
}

SCSS

$custom: #6333b3;
$custom-light: #966fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#6333b3",
  "rgb": {
    "r": 99,
    "g": 51,
    "b": 179
  },
  "hsl": {
    "h": 262.5,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45753,
    "c": 0.18975,
    "h": 294.9
  },
  "luminance": 0.08275
}

Semantic roles & 50–950 ramp

primary

#6333B3

secondary

#AAC67C

accent

#DF49A7

background

#F9F6FC

surface

#F2ECF9

border

#CCC7D2

text

#0E0713

muted

#7E7A82

Preview Lab

Preview with #6333B3

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

Preview Lab → · Contrast checker → · Palette generator →