#311B67#311B67

#311B67 is a dark, vivid violet. Relative luminance 0.024; OKLCH L 30.3% C 0.125 H 290.2°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#311B67
RGB	rgb(49, 27, 103)
HSL	hsl(257, 58%, 25%)
HSV	hsv(257, 74%, 40%)
CMYK	cmyk(52.4%, 73.8%, 0%, 59.6%)
CIE-LAB	lab(17.53, 30.90, -40.86)
CIE-LCH	lch(17.53, 51.23, 307.09°)
OKLab	oklab(30.26% 0.0431 -0.1172)
OKLCH	oklch(30.26% 0.125 290.2)
XYZ	xyz(4.1060, 2.4159, 13.0793)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.81

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B67 #51671B

analogous

#1B2B67 #311B67 #571B67

triadic

#311B67 #67311B #1B6731

tetradic

#311B67 #671B2B #51671B #1B6757

square

#311B67 #671B2B #51671B #1B6757

split-complementary

#311B67 #67571B #2B671B

monochromatic

#0C0618 #1A0E37 #311B67 #482897 #5F34C8

Accessibility & contrast

On white

14.16

#311B67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#311B67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B67

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B67	#FFFFFF	#000000	##FFFFFF
##311B67	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C69

Deuteranopia (green-blind)

#002966

Tritanopia (blue-blind)

#1F2E3F

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #311b67;
/* rgb */ color: rgb(49, 27, 103);
/* oklch */ color: oklch(30.3% 0.125 290.2);

Tailwind

colors: {
  custom: {
    50: '#6f5993',
    500: '#311b67',
    950: '#000000',
  },
}

SCSS

$custom: #311b67;
$custom-light: #6f5993;
$custom-dark: #000000;

JSON

{
  "hex": "#311b67",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 103
  },
  "hsl": {
    "h": 257.368,
    "s": 58.462,
    "l": 25.49
  },
  "oklch": {
    "l": 0.30264,
    "c": 0.12489,
    "h": 290.2
  },
  "luminance": 0.02416
}

Semantic roles & 50–950 ramp

primary

#311B67

secondary

#829C42

accent

#E246B5

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #311B67

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

Preview Lab → · Contrast checker → · Palette generator →