#301B8F#301B8F

#301B8F is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.3% C 0.175 H 280.1°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#301B8F
RGB	rgb(48, 27, 143)
HSL	hsl(251, 68%, 33%)
HSV	hsv(251, 81%, 56%)
CMYK	cmyk(66.4%, 81.1%, 0%, 43.9%)
CIE-LAB	lab(21.56, 43.27, -59.78)
CIE-LCH	lch(21.56, 73.80, 305.90°)
OKLab	oklab(34.32% 0.0308 -0.1726)
OKLCH	oklch(34.32% 0.175 280.1)
XYZ	xyz(6.5672, 3.3949, 26.2905)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301B8F #7A8F1B

analogous

#1B408F #301B8F #6A1B8F

triadic

#301B8F #8F301B #1B8F30

tetradic

#301B8F #8F1B40 #7A8F1B #1B8F6A

square

#301B8F #8F1B40 #7A8F1B #1B8F6A

split-complementary

#301B8F #8F6A1B #408F1B

monochromatic

#0D0828 #1F115C #301B8F #4125C2 #6348DC

Accessibility & contrast

On white

12.51

#301B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#301B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301B8F

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301B8F	#FFFFFF	#000000	##FFFFFF
##301B8F	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002F8D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #301b8f;
/* rgb */ color: rgb(48, 27, 143);
/* oklch */ color: oklch(34.3% 0.175 280.1);

Tailwind

colors: {
  custom: {
    50: '#775bb1',
    500: '#301b8f',
    950: '#000000',
  },
}

SCSS

$custom: #301b8f;
$custom-light: #775bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#301b8f",
  "rgb": {
    "r": 48,
    "g": 27,
    "b": 143
  },
  "hsl": {
    "h": 250.862,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.34317,
    "c": 0.1753,
    "h": 280.1
  },
  "luminance": 0.03395
}

Semantic roles & 50–950 ramp

primary

#301B8F

secondary

#A9BE48

accent

#EB3DCC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #301B8F

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

Preview Lab → · Contrast checker → · Palette generator →