#312B95#312B95

#312B95 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.2% C 0.166 H 277.1°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#312B95
RGB	rgb(49, 43, 149)
HSL	hsl(243, 55%, 38%)
HSV	hsv(243, 71%, 58%)
CMYK	cmyk(67.1%, 71.1%, 0%, 41.6%)
CIE-LAB	lab(25.41, 36.47, -57.14)
CIE-LCH	lch(25.41, 67.79, 302.55°)
OKLab	oklab(37.25% 0.0206 -0.165)
OKLCH	oklch(37.25% 0.166 277.1)
XYZ	xyz(7.5536, 4.5500, 28.9081)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312B95 #8F952B

analogous

#2B5A95 #312B95 #662B95

triadic

#312B95 #95312B #2B9531

tetradic

#312B95 #952B5A #8F952B #2B9566

square

#312B95 #952B5A #8F952B #2B9566

split-complementary

#312B95 #95662B #5A952B

monochromatic

#121036 #211D66 #312B95 #4139C4 #6D67D3

Accessibility & contrast

On white

10.99

#312B95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#312B95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312B95

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312B95	#FFFFFF	#000000	##FFFFFF
##312B95	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004198

Deuteranopia (green-blind)

#003893

Tritanopia (blue-blind)

#00485C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #312b95;
/* rgb */ color: rgb(49, 43, 149);
/* oklch */ color: oklch(37.2% 0.166 277.1);

Tailwind

colors: {
  custom: {
    50: '#7765b5',
    500: '#312b95',
    950: '#000000',
  },
}

SCSS

$custom: #312b95;
$custom-light: #7765b5;
$custom-dark: #000000;

JSON

{
  "hex": "#312b95",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 149
  },
  "hsl": {
    "h": 243.396,
    "s": 55.208,
    "l": 37.647
  },
  "oklch": {
    "l": 0.37247,
    "c": 0.16625,
    "h": 277.1
  },
  "luminance": 0.04551
}

Semantic roles & 50–950 ramp

primary

#312B95

secondary

#B5BA62

accent

#DF49D6

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #312B95

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

Preview Lab → · Contrast checker → · Palette generator →