#312FB9#312FB9

#312FB9 is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.5% C 0.207 H 273.3°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#312FB9
RGB	rgb(49, 47, 185)
HSL	hsl(241, 59%, 45%)
HSV	hsv(241, 75%, 73%)
CMYK	cmyk(73.5%, 74.6%, 0%, 27.5%)
CIE-LAB	lab(29.88, 46.17, -71.51)
CIE-LCH	lch(29.88, 85.12, 302.85°)
OKLab	oklab(41.52% 0.0119 -0.2069)
OKLCH	oklch(41.52% 0.207 273.3)
XYZ	xyz(11.0372, 6.1877, 46.5022)
Luminance	0.0619 (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

#312FB9 #B7B92F

analogous

#2F72B9 #312FB9 #762FB9

triadic

#312FB9 #B9312F #2FB931

tetradic

#312FB9 #B92F72 #B7B92F #2FB976

square

#312FB9 #B92F72 #B7B92F #2FB976

split-complementary

#312FB9 #B9762F #72B92F

monochromatic

#171657 #242388 #312FB9 #5452D3 #8483DF

Accessibility & contrast

On white

9.38

#312FB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#312FB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FB9

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FB9	#FFFFFF	#000000	##FFFFFF
##312FB9	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBD

Deuteranopia (green-blind)

#0040B7

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #312fb9;
/* rgb */ color: rgb(49, 47, 185);
/* oklch */ color: oklch(41.5% 0.207 273.3);

Tailwind

colors: {
  custom: {
    50: '#7f69cf',
    500: '#312fb9',
    950: '#000000',
  },
}

SCSS

$custom: #312fb9;
$custom-light: #7f69cf;
$custom-dark: #000000;

JSON

{
  "hex": "#312fb9",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 185
  },
  "hsl": {
    "h": 240.87,
    "s": 59.483,
    "l": 45.49
  },
  "oklch": {
    "l": 0.41524,
    "c": 0.20724,
    "h": 273.3
  },
  "luminance": 0.06189
}

Semantic roles & 50–950 ramp

primary

#312FB9

secondary

#C8C97B

accent

#E345E0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312FB9

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

Preview Lab → · Contrast checker → · Palette generator →