#301D99#301D99

#301D99 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.186 H 278.3°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#301D99
RGB	rgb(48, 29, 153)
HSL	hsl(249, 68%, 36%)
HSV	hsv(249, 81%, 60%)
CMYK	cmyk(68.6%, 81%, 0%, 40%)
CIE-LAB	lab(23.02, 45.37, -63.55)
CIE-LCH	lch(23.02, 78.08, 305.52°)
OKLab	oklab(35.66% 0.0267 -0.1836)
OKLCH	oklch(35.66% 0.186 278.3)
XYZ	xyz(7.4062, 3.8064, 30.4752)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301D99 #86991D

analogous

#1D4899 #301D99 #6E1D99

triadic

#301D99 #99301D #1D9930

tetradic

#301D99 #991D48 #86991D #1D996E

square

#301D99 #991D48 #86991D #1D996E

split-complementary

#301D99 #996E1D #48991D

monochromatic

#100932 #201366 #301D99 #4027CC #6852DE

Accessibility & contrast

On white

11.92

#301D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#301D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301D99

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301D99	#FFFFFF	#000000	##FFFFFF
##301D99	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9C

Deuteranopia (green-blind)

#003297

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #301d99;
/* rgb */ color: rgb(48, 29, 153);
/* oklch */ color: oklch(35.7% 0.186 278.3);

Tailwind

colors: {
  custom: {
    50: '#795db8',
    500: '#301d99',
    950: '#000000',
  },
}

SCSS

$custom: #301d99;
$custom-light: #795db8;
$custom-dark: #000000;

JSON

{
  "hex": "#301d99",
  "rgb": {
    "r": 48,
    "g": 29,
    "b": 153
  },
  "hsl": {
    "h": 249.194,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35663,
    "c": 0.18551,
    "h": 278.3
  },
  "luminance": 0.03807
}

Semantic roles & 50–950 ramp

primary

#301D99

secondary

#B0C151

accent

#EB3DD0

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #301D99

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

Preview Lab → · Contrast checker → · Palette generator →