#301D91#301D91

#301D91 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.8% C 0.176 H 279.5°. Best body text is #FFFFFF at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#301D91
RGB	rgb(48, 29, 145)
HSL	hsl(250, 67%, 34%)
HSV	hsv(250, 80%, 57%)
CMYK	cmyk(66.9%, 80%, 0%, 43.1%)
CIE-LAB	lab(22.13, 42.89, -60.09)
CIE-LCH	lch(22.13, 73.83, 305.52°)
OKLab	oklab(34.78% 0.0291 -0.1735)
OKLCH	oklch(34.78% 0.176 279.5)
XYZ	xyz(6.7675, 3.5509, 27.1113)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301D91 #7E911D

analogous

#1D4491 #301D91 #6A1D91

triadic

#301D91 #91301D #1D9130

tetradic

#301D91 #911D44 #7E911D #1D916A

square

#301D91 #911D44 #7E911D #1D916A

split-complementary

#301D91 #916A1D #44911D

monochromatic

#0E092B #1F135E #301D91 #4127C4 #644DDB

Accessibility & contrast

On white

12.28

#301D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#301D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301D91

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301D91	#FFFFFF	#000000	##FFFFFF
##301D91	1.00	12.28	1.71	12.28
#FFFFFF	12.28	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003994

Deuteranopia (green-blind)

#00308F

Tritanopia (blue-blind)

#004057

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #301d91;
/* rgb */ color: rgb(48, 29, 145);
/* oklch */ color: oklch(34.8% 0.176 279.5);

Tailwind

colors: {
  custom: {
    50: '#775db2',
    500: '#301d91',
    950: '#000000',
  },
}

SCSS

$custom: #301d91;
$custom-light: #775db2;
$custom-dark: #000000;

JSON

{
  "hex": "#301d91",
  "rgb": {
    "r": 48,
    "g": 29,
    "b": 145
  },
  "hsl": {
    "h": 249.828,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.34777,
    "c": 0.17591,
    "h": 279.5
  },
  "luminance": 0.03551
}

Semantic roles & 50–950 ramp

primary

#301D91

secondary

#ABBE4C

accent

#EA3ECE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #301D91

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

Preview Lab → · Contrast checker → · Palette generator →