#311773#311773
#311773 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.9% C 0.145 H 287.5°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).
Color values
| HEX | #311773 |
|---|---|
| RGB | rgb(49, 23, 115) |
| HSL | hsl(257, 67%, 27%) |
| HSV | hsv(257, 80%, 45%) |
| CMYK | cmyk(57.4%, 80%, 0%, 54.9%) |
| CIE-LAB | lab(17.93, 36.82, -48.02) |
| CIE-LCH | lch(17.93, 60.51, 307.48°) |
| OKLab | oklab(30.91% 0.0436 -0.1382) |
| OKLCH | oklch(30.91% 0.145 287.5) |
| XYZ | xyz(4.6666, 2.5033, 16.4536) |
| Luminance | 0.0250 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Midnight Blue
#191970
ΔE00 3.58
Indigo (survey)
#380282
ΔE00 4.04
Dark Royal Blue
#02066F
ΔE00 5.36
Indigo
#4B0082
ΔE00 5.54
Deep Blue
#040273
ΔE00 5.57
Darkblue (survey)
#030764
ΔE00 5.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#311773 #597317
analogous
#172B73 #311773 #5F1773
triadic
#311773 #733117 #177331
tetradic
#311773 #73172B #597317 #17735F
square
#311773 #73172B #597317 #17735F
split-complementary
#311773 #735F17 #2B7317
monochromatic
#0B051A #1B0D40 #311773 #4721A6 #5E2FD5
Accessibility & contrast
On white
13.99
#311773 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.50
#311773 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #311773
13.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##311773 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##311773 | 1.00 | 13.99 | 1.50 | 13.99 |
| #FFFFFF | 13.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 13.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002E76
Deuteranopia (green-blind)
#002971
Tritanopia (blue-blind)
#153144
Achromatopsia (no color)
#2C2C2C
Design tokens & code
CSS
--color: #311773; /* rgb */ color: rgb(49, 23, 115); /* oklch */ color: oklch(30.9% 0.145 287.5);
Tailwind
colors: {
custom: {
50: '#72579c',
500: '#311773',
950: '#000000',
},
}SCSS
$custom: #311773; $custom-light: #72579c; $custom-dark: #000000;
JSON
{
"hex": "#311773",
"rgb": {
"r": 49,
"g": 23,
"b": 115
},
"hsl": {
"h": 256.957,
"s": 66.667,
"l": 27.059
},
"oklch": {
"l": 0.30908,
"c": 0.1449,
"h": 287.5
},
"luminance": 0.02504
}Semantic roles & 50–950 ramp
primary
#311773
secondary
#8AA93D
accent
#EA3EB9
background
#F7F5F9
surface
#EDE9F2
border
#C8C5CC
text
#09030E
muted
#7B787E