#301C66#301C66

#301C66 is a dark, vivid violet. Relative luminance 0.024; OKLCH L 30.2% C 0.122 H 289.4°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#301C66
RGB	rgb(48, 28, 102)
HSL	hsl(256, 57%, 25%)
HSV	hsv(256, 73%, 40%)
CMYK	cmyk(52.9%, 72.5%, 0%, 60%)
CIE-LAB	lab(17.54, 29.79, -40.20)
CIE-LCH	lch(17.54, 50.03, 306.54°)
OKLab	oklab(30.21% 0.0406 -0.1153)
OKLCH	oklch(30.21% 0.122 289.4)
XYZ	xyz(4.0318, 2.4180, 12.8221)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301C66 #52661C

analogous

#1C2D66 #301C66 #551C66

triadic

#301C66 #66301C #1C6630

tetradic

#301C66 #661C2D #52661C #1C6655

square

#301C66 #661C2D #52661C #1C6655

split-complementary

#301C66 #66551C #2D661C

monochromatic

#0B0718 #190F36 #301C66 #472996 #5D36C6

Accessibility & contrast

On white

14.15

#301C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#301C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301C66

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301C66	#FFFFFF	#000000	##FFFFFF
##301C66	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C68

Deuteranopia (green-blind)

#002965

Tritanopia (blue-blind)

#1D2F3E

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #301c66;
/* rgb */ color: rgb(48, 28, 102);
/* oklch */ color: oklch(30.2% 0.122 289.4);

Tailwind

colors: {
  custom: {
    50: '#6e5a92',
    500: '#301c66',
    950: '#000000',
  },
}

SCSS

$custom: #301c66;
$custom-light: #6e5a92;
$custom-dark: #000000;

JSON

{
  "hex": "#301c66",
  "rgb": {
    "r": 48,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 256.216,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.30215,
    "c": 0.12226,
    "h": 289.4
  },
  "luminance": 0.02418
}

Semantic roles & 50–950 ramp

primary

#301C66

secondary

#839B43

accent

#E048B7

background

#F6F5F9

surface

#ECE9F1

border

#C7C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #301C66

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

Preview Lab → · Contrast checker → · Palette generator →