#312BBF#312BBF

#312BBF is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.6% C 0.218 H 273.3°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#312BBF
RGB	rgb(49, 43, 191)
HSL	hsl(242, 63%, 46%)
HSV	hsv(242, 77%, 75%)
CMYK	cmyk(74.3%, 77.5%, 0%, 25.1%)
CIE-LAB	lab(29.77, 50.26, -75.25)
CIE-LCH	lch(29.77, 90.49, 303.74°)
OKLab	oklab(41.63% 0.0124 -0.2177)
OKLCH	oklch(41.63% 0.218 273.3)
XYZ	xyz(11.5313, 6.1411, 49.8577)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BBF #B9BF2B

analogous

#2B6FBF #312BBF #7B2BBF

triadic

#312BBF #BF312B #2BBF31

tetradic

#312BBF #BF2B6F #B9BF2B #2BBF7B

square

#312BBF #BF2B6F #B9BF2B #2BBF7B

split-complementary

#312BBF #BF7B2B #6FBF2B

monochromatic

#17155B #24208D #312BBF #5550D8 #8682E3

Accessibility & contrast

On white

9.42

#312BBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#312BBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BBF

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BBF	#FFFFFF	#000000	##FFFFFF
##312BBF	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DC3

Deuteranopia (green-blind)

#003FBC

Tritanopia (blue-blind)

#005874

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #312bbf;
/* rgb */ color: rgb(49, 43, 191);
/* oklch */ color: oklch(41.6% 0.218 273.3);

Tailwind

colors: {
  custom: {
    50: '#8067d4',
    500: '#312bbf',
    950: '#000000',
  },
}

SCSS

$custom: #312bbf;
$custom-light: #8067d4;
$custom-dark: #000000;

JSON

{
  "hex": "#312bbf",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 191
  },
  "hsl": {
    "h": 242.432,
    "s": 63.248,
    "l": 45.882
  },
  "oklch": {
    "l": 0.41632,
    "c": 0.21808,
    "h": 273.3
  },
  "luminance": 0.06142
}

Semantic roles & 50–950 ramp

primary

#312BBF

secondary

#C8CC7A

accent

#E642E0

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #312BBF

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

Preview Lab → · Contrast checker → · Palette generator →