#301B99#301B99

#301B99 is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.4% C 0.187 H 278.5°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#301B99
RGB	rgb(48, 27, 153)
HSL	hsl(250, 70%, 35%)
HSV	hsv(250, 82%, 60%)
CMYK	cmyk(68.6%, 82.4%, 0%, 40%)
CIE-LAB	lab(22.69, 46.32, -64.09)
CIE-LCH	lch(22.69, 79.08, 305.86°)
OKLab	oklab(35.44% 0.0277 -0.1851)
OKLCH	oklch(35.44% 0.187 278.5)
XYZ	xyz(7.3588, 3.7115, 30.4594)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301B99 #84991B

analogous

#1B4599 #301B99 #6F1B99

triadic

#301B99 #99301B #1B9930

tetradic

#301B99 #991B45 #84991B #1B996F

square

#301B99 #991B45 #84991B #1B996F

split-complementary

#301B99 #996F1B #45991B

monochromatic

#0F0931 #201265 #301B99 #4024CD #674FE0

Accessibility & contrast

On white

12.05

#301B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#301B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301B99

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301B99	#FFFFFF	#000000	##FFFFFF
##301B99	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9C

Deuteranopia (green-blind)

#003197

Tritanopia (blue-blind)

#00425B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #301b99;
/* rgb */ color: rgb(48, 27, 153);
/* oklch */ color: oklch(35.4% 0.187 278.5);

Tailwind

colors: {
  custom: {
    50: '#795cb8',
    500: '#301b99',
    950: '#000000',
  },
}

SCSS

$custom: #301b99;
$custom-light: #795cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#301b99",
  "rgb": {
    "r": 48,
    "g": 27,
    "b": 153
  },
  "hsl": {
    "h": 250,
    "s": 70,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35436,
    "c": 0.18717,
    "h": 278.5
  },
  "luminance": 0.03712
}

Semantic roles & 50–950 ramp

primary

#301B99

secondary

#AFC24E

accent

#ED3BCF

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #301B99

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

Preview Lab → · Contrast checker → · Palette generator →