#311A74#311A74

#311A74 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.4% C 0.143 H 286.6°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#311A74
RGB	rgb(49, 26, 116)
HSL	hsl(255, 63%, 28%)
HSV	hsv(255, 78%, 45%)
CMYK	cmyk(57.8%, 77.6%, 0%, 54.5%)
CIE-LAB	lab(18.59, 35.54, -47.58)
CIE-LCH	lch(18.59, 59.39, 306.76°)
OKLab	oklab(31.4% 0.0409 -0.1369)
OKLCH	oklch(31.4% 0.143 286.6)
XYZ	xyz(4.7875, 2.6524, 16.7793)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A74 #5D741A

analogous

#1A3074 #311A74 #5E1A74

triadic

#311A74 #74311A #1A7431

tetradic

#311A74 #741A30 #5D741A #1A745E

square

#311A74 #741A30 #5D741A #1A745E

split-complementary

#311A74 #745E1A #30741A

monochromatic

#0B0619 #1C0F42 #311A74 #4625A6 #5E36D2

Accessibility & contrast

On white

13.72

#311A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#311A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A74

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A74	#FFFFFF	#000000	##FFFFFF
##311A74	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F77

Deuteranopia (green-blind)

#002B72

Tritanopia (blue-blind)

#133345

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311a74;
/* rgb */ color: rgb(49, 26, 116);
/* oklch */ color: oklch(31.4% 0.143 286.6);

Tailwind

colors: {
  custom: {
    50: '#72599d',
    500: '#311a74',
    950: '#000000',
  },
}

SCSS

$custom: #311a74;
$custom-light: #72599d;
$custom-dark: #000000;

JSON

{
  "hex": "#311a74",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 116
  },
  "hsl": {
    "h": 255.333,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31403,
    "c": 0.1429,
    "h": 286.6
  },
  "luminance": 0.02653
}

Semantic roles & 50–950 ramp

primary

#311A74

secondary

#8EA941

accent

#E641BC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311A74

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

Preview Lab → · Contrast checker → · Palette generator →