#313CAD#313CAD
#313CAD is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.178 H 271.9°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).
Color values
| HEX | #313CAD |
|---|---|
| RGB | rgb(49, 60, 173) |
| HSL | hsl(235, 56%, 44%) |
| HSV | hsv(235, 72%, 68%) |
| CMYK | cmyk(71.7%, 65.3%, 0%, 32.2%) |
| CIE-LAB | lab(31.58, 34.24, -61.57) |
| CIE-LCH | lch(31.58, 70.45, 299.08°) |
| OKLab | oklab(42.4% 0.006 -0.1779) |
| OKLCH | oklch(42.4% 0.178 271.9) |
| XYZ | xyz(10.4228, 6.9008, 40.3098) |
| Luminance | 0.0690 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.73
Blue Blue
#2242C7
ΔE00 3.86
Ocean Blue
#4F42B5
ΔE00 4.39
Blueberry
#464196
ΔE00 4.85
Blue With A Hint Of Purple
#533CC6
ΔE00 5.97
Cobalt
#0047AB
ΔE00 6.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#313CAD #ADA231
analogous
#317AAD #313CAD #6431AD
triadic
#313CAD #AD313C #3CAD31
tetradic
#313CAD #AD317A #ADA231 #31AD64
square
#313CAD #AD317A #ADA231 #31AD64
split-complementary
#313CAD #AD6431 #7AAD31
monochromatic
#161B4E #232B7D #313CAD #4E59CD #7E86DA
Accessibility & contrast
On white
8.82
#313CAD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#313CAD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #313CAD
8.82:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##313CAD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##313CAD | 1.00 | 8.82 | 2.38 | 8.82 |
| #FFFFFF | 8.82 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.82 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050B1
Deuteranopia (green-blind)
#0045AB
Tritanopia (blue-blind)
#005A6F
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #313cad; /* rgb */ color: rgb(49, 60, 173); /* oklch */ color: oklch(42.4% 0.178 271.9);
Tailwind
colors: {
custom: {
50: '#7b72c6',
500: '#313cad',
950: '#000000',
},
}SCSS
$custom: #313cad; $custom-light: #7b72c6; $custom-dark: #000000;
JSON
{
"hex": "#313cad",
"rgb": {
"r": 49,
"g": 60,
"b": 173
},
"hsl": {
"h": 234.677,
"s": 55.856,
"l": 43.529
},
"oklch": {
"l": 0.42398,
"c": 0.178,
"h": 271.9
},
"luminance": 0.06902
}Semantic roles & 50–950 ramp
primary
#313CAD
secondary
#C3BC77
accent
#D249DF
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0813
muted
#7C7B82