#301E99#301E99

#301E99 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.185 H 278.2°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#301E99
RGB	rgb(48, 30, 153)
HSL	hsl(249, 67%, 36%)
HSV	hsv(249, 80%, 60%)
CMYK	cmyk(68.6%, 80.4%, 0%, 40%)
CIE-LAB	lab(23.19, 44.88, -63.27)
CIE-LCH	lch(23.19, 77.57, 305.35°)
OKLab	oklab(35.78% 0.0263 -0.1828)
OKLCH	oklch(35.78% 0.185 278.2)
XYZ	xyz(7.4311, 3.8562, 30.4835)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301E99 #87991E

analogous

#1E4A99 #301E99 #6D1E99

triadic

#301E99 #99301E #1E9930

tetradic

#301E99 #991E4A #87991E #1E996D

square

#301E99 #991E4A #87991E #1E996D

split-complementary

#301E99 #996D1E #4A991E

monochromatic

#100A33 #201466 #301E99 #4028CC #6854DD

Accessibility & contrast

On white

11.86

#301E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#301E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301E99

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301E99	#FFFFFF	#000000	##FFFFFF
##301E99	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9C

Deuteranopia (green-blind)

#003297

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #301e99;
/* rgb */ color: rgb(48, 30, 153);
/* oklch */ color: oklch(35.8% 0.185 278.2);

Tailwind

colors: {
  custom: {
    50: '#785eb8',
    500: '#301e99',
    950: '#000000',
  },
}

SCSS

$custom: #301e99;
$custom-light: #785eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#301e99",
  "rgb": {
    "r": 48,
    "g": 30,
    "b": 153
  },
  "hsl": {
    "h": 248.78,
    "s": 67.213,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3578,
    "c": 0.18465,
    "h": 278.2
  },
  "luminance": 0.03857
}

Semantic roles & 50–950 ramp

primary

#301E99

secondary

#B1C152

accent

#EA3ED1

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #301E99

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

Preview Lab → · Contrast checker → · Palette generator →