#303191#303191

#303191 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.8% C 0.154 H 275.7°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#303191
RGB	rgb(48, 49, 145)
HSL	hsl(239, 50%, 38%)
HSV	hsv(239, 67%, 57%)
CMYK	cmyk(66.9%, 66.2%, 0%, 43.1%)
CIE-LAB	lab(26.36, 31.18, -53.13)
CIE-LCH	lch(26.36, 61.61, 300.41°)
OKLab	oklab(37.8% 0.0153 -0.1532)
OKLCH	oklch(37.8% 0.154 275.7)
XYZ	xyz(7.4264, 4.8687, 27.3310)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303191 #919030

analogous

#306291 #303191 #5F3091

triadic

#303191 #913031 #319130

tetradic

#303191 #913062 #919030 #30915F

square

#303191 #913062 #919030 #30915F

split-complementary

#303191 #915F30 #629130

monochromatic

#121235 #212163 #303191 #3F41BF #6D6ECF

Accessibility & contrast

On white

10.64

#303191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#303191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303191

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303191	#FFFFFF	#000000	##FFFFFF
##303191	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004394

Deuteranopia (green-blind)

#003A8F

Tritanopia (blue-blind)

#004A5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #303191;
/* rgb */ color: rgb(48, 49, 145);
/* oklch */ color: oklch(37.8% 0.154 275.7);

Tailwind

colors: {
  custom: {
    50: '#7569b2',
    500: '#303191',
    950: '#000000',
  },
}

SCSS

$custom: #303191;
$custom-light: #7569b2;
$custom-dark: #000000;

JSON

{
  "hex": "#303191",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 145
  },
  "hsl": {
    "h": 239.381,
    "s": 50.259,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37797,
    "c": 0.15401,
    "h": 275.7
  },
  "luminance": 0.04869
}

Semantic roles & 50–950 ramp

primary

#303191

secondary

#B6B567

accent

#D84EDA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #303191

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

Preview Lab → · Contrast checker → · Palette generator →