#312FCF#312FCF

#312FCF is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.9% C 0.233 H 271.9°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#312FCF
RGB	rgb(49, 47, 207)
HSL	hsl(241, 63%, 50%)
HSV	hsv(241, 77%, 81%)
CMYK	cmyk(76.3%, 77.3%, 0%, 18.8%)
CIE-LAB	lab(32.23, 53.24, -80.53)
CIE-LCH	lch(32.23, 96.53, 303.47°)
OKLab	oklab(43.88% 0.0076 -0.2331)
OKLCH	oklch(43.88% 0.233 271.9)
XYZ	xyz(13.5418, 7.1895, 59.6934)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 4.30

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FCF #CDCF2F

analogous

#2F7DCF #312FCF #812FCF

triadic

#312FCF #CF312F #2FCF31

tetradic

#312FCF #CF2F7D #CDCF2F #2FCF81

square

#312FCF #CF2F7D #CDCF2F #2FCF81

split-complementary

#312FCF #CF812F #7DCF2F

monochromatic

#19186B #25249D #312FCF #6260DB #9392E6

Accessibility & contrast

On white

8.61

#312FCF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#312FCF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FCF

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FCF	#FFFFFF	#000000	##FFFFFF
##312FCF	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054D4

Deuteranopia (green-blind)

#0044CC

Tritanopia (blue-blind)

#00607E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #312fcf;
/* rgb */ color: rgb(49, 47, 207);
/* oklch */ color: oklch(43.9% 0.233 271.9);

Tailwind

colors: {
  custom: {
    50: '#846bdf',
    500: '#312fcf',
    950: '#000000',
  },
}

SCSS

$custom: #312fcf;
$custom-light: #846bdf;
$custom-dark: #000000;

JSON

{
  "hex": "#312fcf",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 207
  },
  "hsl": {
    "h": 240.75,
    "s": 62.992,
    "l": 49.804
  },
  "oklch": {
    "l": 0.43878,
    "c": 0.23323,
    "h": 271.9
  },
  "luminance": 0.07191
}

Semantic roles & 50–950 ramp

primary

#312FCF

secondary

#D0D189

accent

#E642E4

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #312FCF

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

Preview Lab → · Contrast checker → · Palette generator →