#301DB1#301DB1

#301DB1 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.4% C 0.213 H 275.3°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#301DB1
RGB	rgb(48, 29, 177)
HSL	hsl(248, 72%, 40%)
HSV	hsv(248, 84%, 69%)
CMYK	cmyk(72.9%, 83.6%, 0%, 30.6%)
CIE-LAB	lab(25.80, 52.59, -73.49)
CIE-LCH	lch(25.80, 90.37, 305.59°)
OKLab	oklab(38.4% 0.0197 -0.2124)
OKLCH	oklch(38.4% 0.213 275.3)
XYZ	xyz(9.5915, 4.6805, 41.9844)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301DB1 #9EB11D

analogous

#1D54B1 #301DB1 #7A1DB1

triadic

#301DB1 #B1301D #1DB130

tetradic

#301DB1 #B11D54 #9EB11D #1DB17A

square

#301DB1 #B11D54 #9EB11D #1DB17A

split-complementary

#301DB1 #B17A1D #54B11D

monochromatic

#130C48 #22147C #301DB1 #452EDD #7463E5

Accessibility & contrast

On white

10.85

#301DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#301DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301DB1

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301DB1	#FFFFFF	#000000	##FFFFFF
##301DB1	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B5

Deuteranopia (green-blind)

#0036AF

Tritanopia (blue-blind)

#004D69

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #301db1;
/* rgb */ color: rgb(48, 29, 177);
/* oklch */ color: oklch(38.4% 0.213 275.3);

Tailwind

colors: {
  custom: {
    50: '#7e5fca',
    500: '#301db1',
    950: '#000000',
  },
}

SCSS

$custom: #301db1;
$custom-light: #7e5fca;
$custom-dark: #000000;

JSON

{
  "hex": "#301db1",
  "rgb": {
    "r": 48,
    "g": 29,
    "b": 177
  },
  "hsl": {
    "h": 247.703,
    "s": 71.845,
    "l": 40.392
  },
  "oklch": {
    "l": 0.38397,
    "c": 0.21335,
    "h": 275.3
  },
  "luminance": 0.04681
}

Semantic roles & 50–950 ramp

primary

#301DB1

secondary

#BDCA60

accent

#EF39D7

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #301DB1

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

Preview Lab → · Contrast checker → · Palette generator →