#310F51#310F51

#310F51 is a dark, moderate violet. Relative luminance 0.016; OKLCH L 26.5% C 0.113 H 302.7°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#310F51
RGB	rgb(49, 15, 81)
HSL	hsl(271, 69%, 19%)
HSV	hsv(271, 81%, 32%)
CMYK	cmyk(39.5%, 81.5%, 0%, 68.2%)
CIE-LAB	lab(13.16, 30.94, -33.26)
CIE-LCH	lch(13.16, 45.43, 312.93°)
OKLab	oklab(26.53% 0.0609 -0.0948)
OKLCH	oklch(26.53% 0.113 302.7)
XYZ	xyz(2.9223, 1.5887, 7.9357)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310F51 #2F510F

analogous

#100F51 #310F51 #510F50

triadic

#310F51 #51310F #0F5131

tetradic

#310F51 #51100F #2F510F #0F5051

square

#310F51 #51100F #2F510F #0F5051

split-complementary

#310F51 #50510F #0F5110

monochromatic

#10051A #12051D #310F51 #501985 #6F22B8

Accessibility & contrast

On white

15.94

#310F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#310F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310F51

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310F51	#FFFFFF	#000000	##FFFFFF
##310F51	1.00	15.94	1.32	15.94
#FFFFFF	15.94	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002153

Deuteranopia (green-blind)

#002250

Tritanopia (blue-blind)

#2A202F

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #310f51;
/* rgb */ color: rgb(49, 15, 81);
/* oklch */ color: oklch(26.5% 0.113 302.7);

Tailwind

colors: {
  custom: {
    50: '#6d5182',
    500: '#310f51',
    950: '#000000',
  },
}

SCSS

$custom: #310f51;
$custom-light: #6d5182;
$custom-dark: #000000;

JSON

{
  "hex": "#310f51",
  "rgb": {
    "r": 49,
    "g": 15,
    "b": 81
  },
  "hsl": {
    "h": 270.909,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.26531,
    "c": 0.11268,
    "h": 302.7
  },
  "luminance": 0.01589
}

Semantic roles & 50–950 ramp

primary

#310F51

secondary

#5D8B31

accent

#EC3C91

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#07020A

muted

#7A787C

Preview Lab

Preview with #310F51

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

Preview Lab → · Contrast checker → · Palette generator →