#311A8E#311A8E

#311A8E is a dark, vivid violet. Relative luminance 0.033; OKLCH L 34.2% C 0.175 H 280.9°. Best body text is #FFFFFF at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#311A8E
RGB	rgb(49, 26, 142)
HSL	hsl(252, 69%, 33%)
HSV	hsv(252, 82%, 56%)
CMYK	cmyk(65.5%, 81.7%, 0%, 44.3%)
CIE-LAB	lab(21.37, 43.56, -59.47)
CIE-LCH	lch(21.37, 73.71, 306.22°)
OKLab	oklab(34.18% 0.0332 -0.1716)
OKLCH	oklch(34.18% 0.175 280.9)
XYZ	xyz(6.5170, 3.3442, 25.8880)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A8E #778E1A

analogous

#1A3D8E #311A8E #6B1A8E

triadic

#311A8E #8E311A #1A8E31

tetradic

#311A8E #8E1A3D #778E1A #1A8E6B

square

#311A8E #8E1A3D #778E1A #1A8E6B

split-complementary

#311A8E #8E6B1A #3D8E1A

monochromatic

#0D0727 #1F115A #311A8E #4323C2 #6345DD

Accessibility & contrast

On white

12.58

#311A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#311A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A8E

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A8E	#FFFFFF	#000000	##FFFFFF
##311A8E	1.00	12.58	1.67	12.58
#FFFFFF	12.58	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002F8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #311a8e;
/* rgb */ color: rgb(49, 26, 142);
/* oklch */ color: oklch(34.2% 0.175 280.9);

Tailwind

colors: {
  custom: {
    50: '#775bb0',
    500: '#311a8e',
    950: '#000000',
  },
}

SCSS

$custom: #311a8e;
$custom-light: #775bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#311a8e",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 142
  },
  "hsl": {
    "h": 251.897,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34176,
    "c": 0.17479,
    "h": 280.9
  },
  "luminance": 0.03345
}

Semantic roles & 50–950 ramp

primary

#311A8E

secondary

#A6BE45

accent

#EC3CC9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311A8E

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

Preview Lab → · Contrast checker → · Palette generator →