#301AB4#301AB4

#301AB4 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.5% C 0.219 H 275.2°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#301AB4
RGB	rgb(48, 26, 180)
HSL	hsl(249, 75%, 40%)
HSV	hsv(249, 86%, 71%)
CMYK	cmyk(73.3%, 85.6%, 0%, 29.4%)
CIE-LAB	lab(25.75, 54.70, -75.38)
CIE-LCH	lch(25.75, 93.14, 305.97°)
OKLab	oklab(38.46% 0.0197 -0.2179)
OKLCH	oklch(38.46% 0.219 275.2)
XYZ	xyz(9.8238, 4.6615, 43.5532)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301AB4 #9EB41A

analogous

#1A51B4 #301AB4 #7D1AB4

triadic

#301AB4 #B4301A #1AB430

tetradic

#301AB4 #B41A51 #9EB41A #1AB47D

square

#301AB4 #B41A51 #9EB41A #1AB47D

split-complementary

#301AB4 #B47D1A #51B41A

monochromatic

#130B49 #22127F #301AB4 #452BE0 #7460E8

Accessibility & contrast

On white

10.87

#301AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#301AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301AB4

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301AB4	#FFFFFF	#000000	##FFFFFF
##301AB4	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B8

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #301ab4;
/* rgb */ color: rgb(48, 26, 180);
/* oklch */ color: oklch(38.5% 0.219 275.2);

Tailwind

colors: {
  custom: {
    50: '#7f5ecc',
    500: '#301ab4',
    950: '#000000',
  },
}

SCSS

$custom: #301ab4;
$custom-light: #7f5ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#301ab4",
  "rgb": {
    "r": 48,
    "g": 26,
    "b": 180
  },
  "hsl": {
    "h": 248.571,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.38462,
    "c": 0.21875,
    "h": 275.2
  },
  "luminance": 0.04662
}

Semantic roles & 50–950 ramp

primary

#301AB4

secondary

#BDCC5D

accent

#F136D7

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #301AB4

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

Preview Lab → · Contrast checker → · Palette generator →