#301B81#301B81

#301B81 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.8% C 0.158 H 282.7°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#301B81
RGB	rgb(48, 27, 129)
HSL	hsl(252, 65%, 31%)
HSV	hsv(252, 79%, 51%)
CMYK	cmyk(62.8%, 79.1%, 0%, 49.4%)
CIE-LAB	lab(20.03, 38.93, -53.52)
CIE-LCH	lch(20.03, 66.18, 306.03°)
OKLab	oklab(32.8% 0.0349 -0.1543)
OKLCH	oklch(32.8% 0.158 282.7)
XYZ	xyz(5.5721, 2.9968, 21.0494)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301B81 #6C811B

analogous

#1B3981 #301B81 #631B81

triadic

#301B81 #81301B #1B8130

tetradic

#301B81 #811B39 #6C811B #1B8163

square

#301B81 #811B39 #6C811B #1B8163

split-complementary

#301B81 #81631B #39811B

monochromatic

#0A061C #1D104E #301B81 #4326B4 #5F3FD7

Accessibility & contrast

On white

13.13

#301B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#301B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301B81

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301B81	#FFFFFF	#000000	##FFFFFF
##301B81	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003484

Deuteranopia (green-blind)

#002D7F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #301b81;
/* rgb */ color: rgb(48, 27, 129);
/* oklch */ color: oklch(32.8% 0.158 282.7);

Tailwind

colors: {
  custom: {
    50: '#745aa7',
    500: '#301b81',
    950: '#000000',
  },
}

SCSS

$custom: #301b81;
$custom-light: #745aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#301b81",
  "rgb": {
    "r": 48,
    "g": 27,
    "b": 129
  },
  "hsl": {
    "h": 252.353,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32795,
    "c": 0.15823,
    "h": 282.7
  },
  "luminance": 0.02997
}

Semantic roles & 50–950 ramp

primary

#301B81

secondary

#9DB543

accent

#E83FC6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #301B81

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

Preview Lab → · Contrast checker → · Palette generator →