#311D67#311D67

#311D67 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.6% C 0.122 H 289.6°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#311D67
RGB	rgb(49, 29, 103)
HSL	hsl(256, 56%, 26%)
HSV	hsv(256, 72%, 40%)
CMYK	cmyk(52.4%, 71.8%, 0%, 59.6%)
CIE-LAB	lab(17.97, 29.70, -40.16)
CIE-LCH	lch(17.97, 49.95, 306.49°)
OKLab	oklab(30.57% 0.0409 -0.1152)
OKLCH	oklch(30.57% 0.122 289.6)
XYZ	xyz(4.1535, 2.5108, 13.0951)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D67 #53671D

analogous

#1D2E67 #311D67 #561D67

triadic

#311D67 #67311D #1D6731

tetradic

#311D67 #671D2E #53671D #1D6756

square

#311D67 #671D2E #53671D #1D6756

split-complementary

#311D67 #67561D #2E671D

monochromatic

#0B0718 #1A1037 #311D67 #482A97 #5E38C7

Accessibility & contrast

On white

13.98

#311D67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#311D67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D67

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D67	#FFFFFF	#000000	##FFFFFF
##311D67	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D69

Deuteranopia (green-blind)

#002A66

Tritanopia (blue-blind)

#1F303F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #311d67;
/* rgb */ color: rgb(49, 29, 103);
/* oklch */ color: oklch(30.6% 0.122 289.6);

Tailwind

colors: {
  custom: {
    50: '#6f5a93',
    500: '#311d67',
    950: '#000000',
  },
}

SCSS

$custom: #311d67;
$custom-light: #6f5a93;
$custom-dark: #000000;

JSON

{
  "hex": "#311d67",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 103
  },
  "hsl": {
    "h": 256.216,
    "s": 56.061,
    "l": 25.882
  },
  "oklch": {
    "l": 0.30574,
    "c": 0.12223,
    "h": 289.6
  },
  "luminance": 0.02511
}

Semantic roles & 50–950 ramp

primary

#311D67

secondary

#849C44

accent

#DF48B7

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #311D67

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

Preview Lab → · Contrast checker → · Palette generator →