#311B65#311B65

#311B65 is a dark, vivid violet. Relative luminance 0.024; OKLCH L 30.1% C 0.122 H 290.8°. Best body text is #FFFFFF at 14.24:1 contrast (WCAG AA passes).

Color values

HEX	#311B65
RGB	rgb(49, 27, 101)
HSL	hsl(258, 58%, 25%)
HSV	hsv(258, 73%, 40%)
CMYK	cmyk(51.5%, 73.3%, 0%, 60.4%)
CIE-LAB	lab(17.35, 30.27, -39.85)
CIE-LCH	lch(17.35, 50.04, 307.22°)
OKLab	oklab(30.08% 0.0435 -0.1143)
OKLCH	oklch(30.08% 0.122 290.8)
XYZ	xyz(4.0069, 2.3763, 12.5569)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B65 #4F651B

analogous

#1B2A65 #311B65 #561B65

triadic

#311B65 #65311B #1B6531

tetradic

#311B65 #651B2A #4F651B #1B6556

square

#311B65 #651B2A #4F651B #1B6556

split-complementary

#311B65 #65561B #2A651B

monochromatic

#0C0618 #1A0E35 #311B65 #482895 #6035C6

Accessibility & contrast

On white

14.24

#311B65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#311B65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B65

14.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B65	#FFFFFF	#000000	##FFFFFF
##311B65	1.00	14.24	1.48	14.24
#FFFFFF	14.24	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C67

Deuteranopia (green-blind)

#002964

Tritanopia (blue-blind)

#202E3D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #311b65;
/* rgb */ color: rgb(49, 27, 101);
/* oklch */ color: oklch(30.1% 0.122 290.8);

Tailwind

colors: {
  custom: {
    50: '#6f5992',
    500: '#311b65',
    950: '#000000',
  },
}

SCSS

$custom: #311b65;
$custom-light: #6f5992;
$custom-dark: #000000;

JSON

{
  "hex": "#311b65",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 101
  },
  "hsl": {
    "h": 257.838,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.30075,
    "c": 0.12224,
    "h": 290.8
  },
  "luminance": 0.02376
}

Semantic roles & 50–950 ramp

primary

#311B65

secondary

#809A41

accent

#E147B3

background

#F6F5F9

surface

#ECE9F1

border

#C7C5CB

text

#08030D

muted

#7B787E

Preview Lab

Preview with #311B65

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

Preview Lab → · Contrast checker → · Palette generator →