#301FA4#301FA4

#301FA4 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 37.1% C 0.197 H 276.6°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#301FA4
RGB	rgb(48, 31, 164)
HSL	hsl(248, 68%, 38%)
HSV	hsv(248, 81%, 64%)
CMYK	cmyk(70.7%, 81.1%, 0%, 35.7%)
CIE-LAB	lab(24.60, 47.78, -67.65)
CIE-LCH	lch(24.60, 82.82, 305.23°)
OKLab	oklab(37.13% 0.0227 -0.1955)
OKLCH	oklch(37.13% 0.197 276.6)
XYZ	xyz(8.4076, 4.2879, 35.4993)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301FA4 #93A41F

analogous

#1F50A4 #301FA4 #721FA4

triadic

#301FA4 #A4301F #1FA430

tetradic

#301FA4 #A41F50 #93A41F #1FA472

square

#301FA4 #A41F50 #93A41F #1FA472

split-complementary

#301FA4 #A4721F #50A41F

monochromatic

#120C3D #211571 #301FA4 #402AD7 #6E5DE0

Accessibility & contrast

On white

11.30

#301FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#301FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301FA4

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301FA4	#FFFFFF	#000000	##FFFFFF
##301FA4	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A8

Deuteranopia (green-blind)

#0035A2

Tritanopia (blue-blind)

#004862

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #301fa4;
/* rgb */ color: rgb(48, 31, 164);
/* oklch */ color: oklch(37.1% 0.197 276.6);

Tailwind

colors: {
  custom: {
    50: '#7b5fc0',
    500: '#301fa4',
    950: '#000000',
  },
}

SCSS

$custom: #301fa4;
$custom-light: #7b5fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#301fa4",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 164
  },
  "hsl": {
    "h": 247.669,
    "s": 68.205,
    "l": 38.235
  },
  "oklch": {
    "l": 0.37126,
    "c": 0.19683,
    "h": 276.6
  },
  "luminance": 0.04289
}

Semantic roles & 50–950 ramp

primary

#301FA4

secondary

#B7C55A

accent

#EB3DD5

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #301FA4

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

Preview Lab → · Contrast checker → · Palette generator →