#312FBA#312FBA

#312FBA is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.6% C 0.208 H 273.2°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#312FBA
RGB	rgb(49, 47, 186)
HSL	hsl(241, 60%, 46%)
HSV	hsv(241, 75%, 73%)
CMYK	cmyk(73.7%, 74.7%, 0%, 27.1%)
CIE-LAB	lab(29.99, 46.50, -71.93)
CIE-LCH	lch(29.99, 85.65, 302.88°)
OKLab	oklab(41.63% 0.0117 -0.2081)
OKLCH	oklch(41.63% 0.208 273.2)
XYZ	xyz(11.1431, 6.2300, 47.0601)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FBA #B8BA2F

analogous

#2F73BA #312FBA #762FBA

triadic

#312FBA #BA312F #2FBA31

tetradic

#312FBA #BA2F73 #B8BA2F #2FBA76

square

#312FBA #BA2F73 #B8BA2F #2FBA76

split-complementary

#312FBA #BA762F #73BA2F

monochromatic

#171658 #242389 #312FBA #5553D3 #8584E0

Accessibility & contrast

On white

9.35

#312FBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#312FBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FBA

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FBA	#FFFFFF	#000000	##FFFFFF
##312FBA	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBE

Deuteranopia (green-blind)

#0040B8

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #312fba;
/* rgb */ color: rgb(49, 47, 186);
/* oklch */ color: oklch(41.6% 0.208 273.2);

Tailwind

colors: {
  custom: {
    50: '#7f69d0',
    500: '#312fba',
    950: '#000000',
  },
}

SCSS

$custom: #312fba;
$custom-light: #7f69d0;
$custom-dark: #000000;

JSON

{
  "hex": "#312fba",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 186
  },
  "hsl": {
    "h": 240.863,
    "s": 59.657,
    "l": 45.686
  },
  "oklch": {
    "l": 0.41629,
    "c": 0.20845,
    "h": 273.2
  },
  "luminance": 0.06231
}

Semantic roles & 50–950 ramp

primary

#312FBA

secondary

#C8C97C

accent

#E345E1

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #312FBA

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

Preview Lab → · Contrast checker → · Palette generator →