#312291#312291

#312291 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.171 H 279.3°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#312291
RGB	rgb(49, 34, 145)
HSL	hsl(248, 62%, 35%)
HSV	hsv(248, 77%, 57%)
CMYK	cmyk(66.2%, 76.6%, 0%, 43.1%)
CIE-LAB	lab(23.14, 40.36, -58.42)
CIE-LCH	lch(23.14, 71.00, 304.64°)
OKLab	oklab(35.51% 0.0276 -0.1686)
OKLCH	oklch(35.51% 0.171 279.3)
XYZ	xyz(6.9478, 3.8408, 27.1578)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312291 #829122

analogous

#224B91 #312291 #682291

triadic

#312291 #913122 #229131

tetradic

#312291 #91224B #829122 #229168

square

#312291 #91224B #829122 #229168

split-complementary

#312291 #916822 #4B9122

monochromatic

#0F0B2E #20165F #312291 #422EC3 #6856D7

Accessibility & contrast

On white

11.88

#312291 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#312291 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312291

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312291	#FFFFFF	#000000	##FFFFFF
##312291	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B94

Deuteranopia (green-blind)

#00338F

Tritanopia (blue-blind)

#004258

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #312291;
/* rgb */ color: rgb(49, 34, 145);
/* oklch */ color: oklch(35.5% 0.171 279.3);

Tailwind

colors: {
  custom: {
    50: '#7760b2',
    500: '#312291',
    950: '#000000',
  },
}

SCSS

$custom: #312291;
$custom-light: #7760b2;
$custom-dark: #000000;

JSON

{
  "hex": "#312291",
  "rgb": {
    "r": 49,
    "g": 34,
    "b": 145
  },
  "hsl": {
    "h": 248.108,
    "s": 62.011,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35507,
    "c": 0.17089,
    "h": 279.3
  },
  "luminance": 0.03841
}

Semantic roles & 50–950 ramp

primary

#312291

secondary

#ADBB53

accent

#E543CF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #312291

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

Preview Lab → · Contrast checker → · Palette generator →