#301DA1#301DA1

#301DA1 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.6% C 0.195 H 277.2°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#301DA1
RGB	rgb(48, 29, 161)
HSL	hsl(249, 69%, 37%)
HSV	hsv(249, 82%, 63%)
CMYK	cmyk(70.2%, 82%, 0%, 36.9%)
CIE-LAB	lab(23.93, 47.81, -66.93)
CIE-LCH	lch(23.93, 82.25, 305.54°)
OKLab	oklab(36.56% 0.0244 -0.1934)
OKLCH	oklch(36.56% 0.195 277.2)
XYZ	xyz(8.0892, 4.0796, 34.0724)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301DA1 #8EA11D

analogous

#1D4CA1 #301DA1 #721DA1

triadic

#301DA1 #A1301D #1DA130

tetradic

#301DA1 #A11D4C #8EA11D #1DA172

square

#301DA1 #A11D4C #8EA11D #1DA172

split-complementary

#301DA1 #A1721D #4CA11D

monochromatic

#110A39 #21146D #301DA1 #3F26D5 #6B58E1

Accessibility & contrast

On white

11.56

#301DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#301DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301DA1

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301DA1	#FFFFFF	#000000	##FFFFFF
##301DA1	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA5

Deuteranopia (green-blind)

#00339F

Tritanopia (blue-blind)

#004660

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #301da1;
/* rgb */ color: rgb(48, 29, 161);
/* oklch */ color: oklch(36.6% 0.195 277.2);

Tailwind

colors: {
  custom: {
    50: '#7a5ebe',
    500: '#301da1',
    950: '#000000',
  },
}

SCSS

$custom: #301da1;
$custom-light: #7a5ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#301da1",
  "rgb": {
    "r": 48,
    "g": 29,
    "b": 161
  },
  "hsl": {
    "h": 248.636,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36562,
    "c": 0.19494,
    "h": 277.2
  },
  "luminance": 0.0408
}

Semantic roles & 50–950 ramp

primary

#301DA1

secondary

#B4C455

accent

#EC3CD3

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #301DA1

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

Preview Lab → · Contrast checker → · Palette generator →