#301B78#301B78

#301B78 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 31.9% C 0.147 H 284.7°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#301B78
RGB	rgb(48, 27, 120)
HSL	hsl(254, 63%, 29%)
HSV	hsv(254, 78%, 47%)
CMYK	cmyk(60%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(19.09, 36.10, -49.34)
CIE-LCH	lch(19.09, 61.14, 306.19°)
OKLab	oklab(31.85% 0.0374 -0.1421)
OKLCH	oklch(31.85% 0.147 284.7)
XYZ	xyz(5.0000, 2.7680, 18.0365)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301B78 #63781B

analogous

#1B3578 #301B78 #5F1B78

triadic

#301B78 #78301B #1B7830

tetradic

#301B78 #781B35 #63781B #1B785F

square

#301B78 #781B35 #63781B #1B785F

split-complementary

#301B78 #785F1B #35781B

monochromatic

#0A0619 #1C1046 #301B78 #4426AA #5D3BD3

Accessibility & contrast

On white

13.52

#301B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#301B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301B78

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301B78	#FFFFFF	#000000	##FFFFFF
##301B78	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317B

Deuteranopia (green-blind)

#002B76

Tritanopia (blue-blind)

#093548

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #301b78;
/* rgb */ color: rgb(48, 27, 120);
/* oklch */ color: oklch(31.9% 0.147 284.7);

Tailwind

colors: {
  custom: {
    50: '#725aa0',
    500: '#301b78',
    950: '#000000',
  },
}

SCSS

$custom: #301b78;
$custom-light: #725aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#301b78",
  "rgb": {
    "r": 48,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 253.548,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3185,
    "c": 0.14695,
    "h": 284.7
  },
  "luminance": 0.02768
}

Semantic roles & 50–950 ramp

primary

#301B78

secondary

#94AC43

accent

#E641C1

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #301B78

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

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