#301F9A#301F9A

#301F9A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 36.0% C 0.185 H 277.9°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#301F9A
RGB	rgb(48, 31, 154)
HSL	hsl(248, 66%, 36%)
HSV	hsv(248, 80%, 60%)
CMYK	cmyk(68.8%, 79.9%, 0%, 39.6%)
CIE-LAB	lab(23.47, 44.69, -63.41)
CIE-LCH	lch(23.47, 77.58, 305.17°)
OKLab	oklab(36.01% 0.0255 -0.1832)
OKLCH	oklch(36.01% 0.185 277.9)
XYZ	xyz(7.5398, 3.9408, 30.9289)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301F9A #899A1F

analogous

#1F4C9A #301F9A #6E1F9A

triadic

#301F9A #9A301F #1F9A30

tetradic

#301F9A #9A1F4C #899A1F #1F9A6E

square

#301F9A #9A1F4C #899A1F #1F9A6E

split-complementary

#301F9A #9A6E1F #4C9A1F

monochromatic

#100A34 #201567 #301F9A #4029CD #6956DD

Accessibility & contrast

On white

11.74

#301F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#301F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301F9A

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301F9A	#FFFFFF	#000000	##FFFFFF
##301F9A	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9D

Deuteranopia (green-blind)

#003398

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #301f9a;
/* rgb */ color: rgb(48, 31, 154);
/* oklch */ color: oklch(36.0% 0.185 277.9);

Tailwind

colors: {
  custom: {
    50: '#795eb9',
    500: '#301f9a',
    950: '#000000',
  },
}

SCSS

$custom: #301f9a;
$custom-light: #795eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#301f9a",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 154
  },
  "hsl": {
    "h": 248.293,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36012,
    "c": 0.18496,
    "h": 277.9
  },
  "luminance": 0.03941
}

Semantic roles & 50–950 ramp

primary

#301F9A

secondary

#B2C154

accent

#E93ED2

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #301F9A

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

Preview Lab → · Contrast checker → · Palette generator →