#313F9E#313F9E
#313F9E is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.154 H 271.6°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #313F9E |
|---|---|
| RGB | rgb(49, 63, 158) |
| HSL | hsl(232, 53%, 41%) |
| HSV | hsv(232, 69%, 62%) |
| CMYK | cmyk(69%, 60.1%, 0%, 38%) |
| CIE-LAB | lab(31.06, 26.85, -53.41) |
| CIE-LCH | lch(31.06, 59.78, 296.69°) |
| OKLab | oklab(41.62% 0.0043 -0.1539) |
| OKLCH | oklch(41.62% 0.154 271.6) |
| XYZ | xyz(9.2136, 6.6757, 33.1441) |
| Luminance | 0.0668 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 3.03
Blueberry
#464196
ΔE00 3.68
Cobalt
#0047AB
ΔE00 5.12
Darkslateblue
#483D8B
ΔE00 5.45
Blue Blue
#2242C7
ΔE00 5.59
Ocean Blue
#4F42B5
ΔE00 5.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#313F9E #9E9031
analogous
#31759E #313F9E #5A319E
triadic
#313F9E #9E313F #3F9E31
tetradic
#313F9E #9E3175 #9E9031 #319E5A
square
#313F9E #9E3175 #9E9031 #319E5A
split-complementary
#313F9E #9E5A31 #759E31
monochromatic
#141A41 #232C6F #313F9E #4657C6 #7581D4
Accessibility & contrast
On white
8.99
#313F9E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#313F9E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #313F9E
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##313F9E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##313F9E | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004EA1
Deuteranopia (green-blind)
#00449C
Tritanopia (blue-blind)
#005768
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #313f9e; /* rgb */ color: rgb(49, 63, 158); /* oklch */ color: oklch(41.6% 0.154 271.6);
Tailwind
colors: {
custom: {
50: '#7774bb',
500: '#313f9e',
950: '#000000',
},
}SCSS
$custom: #313f9e; $custom-light: #7774bb; $custom-dark: #000000;
JSON
{
"hex": "#313f9e",
"rgb": {
"r": 49,
"g": 63,
"b": 158
},
"hsl": {
"h": 232.294,
"s": 52.657,
"l": 40.588
},
"oklch": {
"l": 0.41617,
"c": 0.15397,
"h": 271.6
},
"luminance": 0.06677
}Semantic roles & 50–950 ramp
primary
#313F9E
secondary
#BCB26E
accent
#CA4CDC
background
#F7F7FB
surface
#EEEDF6
border
#C9C8D0
text
#0A0812
muted
#7C7B81