#312FA3#312FA3

#312FA3 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.3% C 0.180 H 275.0°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#312FA3
RGB	rgb(49, 47, 163)
HSL	hsl(241, 55%, 41%)
HSV	hsv(241, 71%, 64%)
CMYK	cmyk(69.9%, 71.2%, 0%, 36.1%)
CIE-LAB	lab(27.65, 38.82, -62.00)
CIE-LCH	lch(27.65, 73.15, 302.05°)
OKLab	oklab(39.27% 0.0157 -0.1792)
OKLCH	oklch(39.27% 0.18 275)
XYZ	xyz(8.8918, 5.3295, 35.2033)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FA3 #A1A32F

analogous

#2F67A3 #312FA3 #6B2FA3

triadic

#312FA3 #A3312F #2FA331

tetradic

#312FA3 #A32F67 #A1A32F #2FA36B

square

#312FA3 #A32F67 #A1A32F #2FA36B

split-complementary

#312FA3 #A36B2F #67A32F

monochromatic

#141444 #232173 #312FA3 #4846CA #7775D7

Accessibility & contrast

On white

10.16

#312FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#312FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FA3

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FA3	#FFFFFF	#000000	##FFFFFF
##312FA3	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A6

Deuteranopia (green-blind)

#003CA1

Tritanopia (blue-blind)

#004F65

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312fa3;
/* rgb */ color: rgb(49, 47, 163);
/* oklch */ color: oklch(39.3% 0.180 275.0);

Tailwind

colors: {
  custom: {
    50: '#7a69bf',
    500: '#312fa3',
    950: '#000000',
  },
}

SCSS

$custom: #312fa3;
$custom-light: #7a69bf;
$custom-dark: #000000;

JSON

{
  "hex": "#312fa3",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 163
  },
  "hsl": {
    "h": 241.034,
    "s": 55.238,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39268,
    "c": 0.17988,
    "h": 275
  },
  "luminance": 0.0533
}

Semantic roles & 50–950 ramp

primary

#312FA3

secondary

#BEBF6F

accent

#DF49DC

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312FA3

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

Preview Lab → · Contrast checker → · Palette generator →