#312BBA#312BBA

#312BBA is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 41.1% C 0.212 H 273.6°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#312BBA
RGB	rgb(49, 43, 186)
HSL	hsl(243, 62%, 45%)
HSV	hsv(243, 77%, 73%)
CMYK	cmyk(73.7%, 76.9%, 0%, 27.1%)
CIE-LAB	lab(29.22, 48.67, -73.19)
CIE-LCH	lch(29.22, 87.90, 303.62°)
OKLab	oklab(41.09% 0.0135 -0.2117)
OKLCH	oklch(41.09% 0.212 273.6)
XYZ	xyz(10.9905, 5.9248, 47.0092)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BBA #B4BA2B

analogous

#2B6DBA #312BBA #782BBA

triadic

#312BBA #BA312B #2BBA31

tetradic

#312BBA #BA2B6D #B4BA2B #2BBA78

square

#312BBA #BA2B6D #B4BA2B #2BBA78

split-complementary

#312BBA #BA782B #6DBA2B

monochromatic

#171457 #242088 #312BBA #524CD6 #827EE1

Accessibility & contrast

On white

9.61

#312BBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#312BBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BBA

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BBA	#FFFFFF	#000000	##FFFFFF
##312BBA	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBE

Deuteranopia (green-blind)

#003EB7

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312bba;
/* rgb */ color: rgb(49, 43, 186);
/* oklch */ color: oklch(41.1% 0.212 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f67d0',
    500: '#312bba',
    950: '#000000',
  },
}

SCSS

$custom: #312bba;
$custom-light: #7f67d0;
$custom-dark: #000000;

JSON

{
  "hex": "#312bba",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 186
  },
  "hsl": {
    "h": 242.517,
    "s": 62.445,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4109,
    "c": 0.21218,
    "h": 273.6
  },
  "luminance": 0.05926
}

Semantic roles & 50–950 ramp

primary

#312BBA

secondary

#C6CA77

accent

#E642DF

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #312BBA

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

Preview Lab → · Contrast checker → · Palette generator →