#301FA1#301FA1

#301FA1 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.8% C 0.193 H 277.0°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#301FA1
RGB	rgb(48, 31, 161)
HSL	hsl(248, 68%, 38%)
HSV	hsv(248, 81%, 63%)
CMYK	cmyk(70.2%, 80.7%, 0%, 36.9%)
CIE-LAB	lab(24.26, 46.86, -66.39)
CIE-LCH	lch(24.26, 81.26, 305.21°)
OKLab	oklab(36.79% 0.0235 -0.1919)
OKLCH	oklch(36.79% 0.193 277)
XYZ	xyz(8.1398, 4.1808, 34.0893)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301FA1 #90A11F

analogous

#1F4FA1 #301FA1 #711FA1

triadic

#301FA1 #A1301F #1FA130

tetradic

#301FA1 #A11F4F #90A11F #1FA171

square

#301FA1 #A11F4F #90A11F #1FA171

split-complementary

#301FA1 #A1711F #4FA11F

monochromatic

#110B3A #21156E #301FA1 #3F29D4 #6C5BDF

Accessibility & contrast

On white

11.44

#301FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#301FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301FA1

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301FA1	#FFFFFF	#000000	##FFFFFF
##301FA1	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA5

Deuteranopia (green-blind)

#00349F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #301fa1;
/* rgb */ color: rgb(48, 31, 161);
/* oklch */ color: oklch(36.8% 0.193 277.0);

Tailwind

colors: {
  custom: {
    50: '#7a5fbe',
    500: '#301fa1',
    950: '#000000',
  },
}

SCSS

$custom: #301fa1;
$custom-light: #7a5fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#301fa1",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 161
  },
  "hsl": {
    "h": 247.846,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.3679,
    "c": 0.1933,
    "h": 277
  },
  "luminance": 0.04182
}

Semantic roles & 50–950 ramp

primary

#301FA1

secondary

#B5C458

accent

#EB3DD4

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #301FA1

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

Preview Lab → · Contrast checker → · Palette generator →