#311A7B#311A7B

#311A7B is a dark, vivid violet. Relative luminance 0.028; OKLCH L 32.1% C 0.152 H 284.9°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#311A7B
RGB	rgb(49, 26, 123)
HSL	hsl(254, 65%, 29%)
HSV	hsv(254, 79%, 48%)
CMYK	cmyk(60.2%, 78.9%, 0%, 51.8%)
CIE-LAB	lab(19.31, 37.72, -50.89)
CIE-LCH	lch(19.31, 63.34, 306.55°)
OKLab	oklab(32.13% 0.0389 -0.1466)
OKLCH	oklch(32.13% 0.152 284.9)
XYZ	xyz(5.2101, 2.8215, 19.0051)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A7B #647B1A

analogous

#1A347B #311A7B #621A7B

triadic

#311A7B #7B311A #1A7B31

tetradic

#311A7B #7B1A34 #647B1A #1A7B62

square

#311A7B #7B1A34 #647B1A #1A7B62

split-complementary

#311A7B #7B621A #347B1A

monochromatic

#0A0519 #1D0F48 #311A7B #4525AE #5F3AD5

Accessibility & contrast

On white

13.42

#311A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#311A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A7B

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A7B	#FFFFFF	#000000	##FFFFFF
##311A7B	1.00	13.42	1.56	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317E

Deuteranopia (green-blind)

#002C79

Tritanopia (blue-blind)

#083649

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #311a7b;
/* rgb */ color: rgb(49, 26, 123);
/* oklch */ color: oklch(32.1% 0.152 284.9);

Tailwind

colors: {
  custom: {
    50: '#735aa2',
    500: '#311a7b',
    950: '#000000',
  },
}

SCSS

$custom: #311a7b;
$custom-light: #735aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#311a7b",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 123
  },
  "hsl": {
    "h": 254.227,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32127,
    "c": 0.15167,
    "h": 284.9
  },
  "luminance": 0.02822
}

Semantic roles & 50–950 ramp

primary

#311A7B

secondary

#95AF42

accent

#E840C0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311A7B

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

Preview Lab → · Contrast checker → · Palette generator →