#315FAB#315FAB
#315FAB is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.3% C 0.132 H 259.9°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).
Color values
| HEX | #315FAB |
|---|---|
| RGB | rgb(49, 95, 171) |
| HSL | hsl(217, 55%, 43%) |
| HSV | hsv(217, 71%, 67%) |
| CMYK | cmyk(71.3%, 44.4%, 0%, 32.9%) |
| CIE-LAB | lab(40.86, 10.59, -45.36) |
| CIE-LCH | lch(40.86, 46.57, 283.14°) |
| OKLab | oklab(49.34% -0.0231 -0.1297) |
| OKLCH | oklch(49.34% 0.132 259.9) |
| XYZ | xyz(12.7069, 11.7763, 40.1236) |
| Luminance | 0.1178 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Denim
#1560BD
ΔE00 2.50
Denim Blue
#3B5B92
ΔE00 3.58
French Blue
#436BAD
ΔE00 4.24
Denim (survey)
#3B638C
ΔE00 4.25
Dusky Blue
#475F94
ΔE00 4.55
Mid Blue
#276AB3
ΔE00 4.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#315FAB #AB7D31
analogous
#319CAB #315FAB #4031AB
triadic
#315FAB #AB315F #5FAB31
tetradic
#315FAB #AB319C #AB7D31 #31AB40
square
#315FAB #AB319C #AB7D31 #31AB40
split-complementary
#315FAB #AB4031 #9CAB31
monochromatic
#162A4C #23457B #315FAB #4D7DCC #7DA0DA
Accessibility & contrast
On white
6.26
#315FAB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.36
#315FAB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #315FAB
6.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##315FAB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##315FAB | 1.00 | 6.26 | 3.36 | 6.26 |
| #FFFFFF | 6.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.36 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3A66AE
Deuteranopia (green-blind)
#235BA9
Tritanopia (blue-blind)
#00717C
Achromatopsia (no color)
#606060
Design tokens & code
CSS
--color: #315fab; /* rgb */ color: rgb(49, 95, 171); /* oklch */ color: oklch(49.3% 0.132 259.9);
Tailwind
colors: {
custom: {
50: '#788bc4',
500: '#315fab',
950: '#000000',
},
}SCSS
$custom: #315fab; $custom-light: #788bc4; $custom-dark: #000000;
JSON
{
"hex": "#315fab",
"rgb": {
"r": 49,
"g": 95,
"b": 171
},
"hsl": {
"h": 217.377,
"s": 55.455,
"l": 43.137
},
"oklch": {
"l": 0.49343,
"c": 0.13178,
"h": 259.9
},
"luminance": 0.11778
}Semantic roles & 50–950 ramp
primary
#315FAB
secondary
#C2A575
accent
#A649DF
background
#F7F8FC
surface
#EEF0F8
border
#C9CBD1
text
#0A0C13
muted
#7C7D82