#301D9E#301D9E

#301D9E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.2% C 0.191 H 277.6°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#301D9E
RGB	rgb(48, 29, 158)
HSL	hsl(249, 69%, 37%)
HSV	hsv(249, 82%, 62%)
CMYK	cmyk(69.6%, 81.6%, 0%, 38%)
CIE-LAB	lab(23.59, 46.90, -65.67)
CIE-LCH	lch(23.59, 80.70, 305.53°)
OKLab	oklab(36.22% 0.0253 -0.1897)
OKLCH	oklch(36.22% 0.191 277.6)
XYZ	xyz(7.8278, 3.9750, 32.6959)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301D9E #8B9E1D

analogous

#1D4B9E #301D9E #711D9E

triadic

#301D9E #9E301D #1D9E30

tetradic

#301D9E #9E1D4B #8B9E1D #1D9E71

square

#301D9E #9E1D4B #8B9E1D #1D9E71

split-complementary

#301D9E #9E711D #4B9E1D

monochromatic

#110A37 #20146A #301D9E #4026D2 #6A56E0

Accessibility & contrast

On white

11.70

#301D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#301D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301D9E

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301D9E	#FFFFFF	#000000	##FFFFFF
##301D9E	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA2

Deuteranopia (green-blind)

#00339C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #301d9e;
/* rgb */ color: rgb(48, 29, 158);
/* oklch */ color: oklch(36.2% 0.191 277.6);

Tailwind

colors: {
  custom: {
    50: '#7a5dbc',
    500: '#301d9e',
    950: '#000000',
  },
}

SCSS

$custom: #301d9e;
$custom-light: #7a5dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#301d9e",
  "rgb": {
    "r": 48,
    "g": 29,
    "b": 158
  },
  "hsl": {
    "h": 248.837,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36223,
    "c": 0.19142,
    "h": 277.6
  },
  "luminance": 0.03976
}

Semantic roles & 50–950 ramp

primary

#301D9E

secondary

#B3C354

accent

#EC3CD2

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #301D9E

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

Preview Lab → · Contrast checker → · Palette generator →