#3130B4#3130B4
#3130B4 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.1% C 0.200 H 273.5°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).
Color values
| HEX | #3130B4 |
|---|---|
| RGB | rgb(49, 48, 180) |
| HSL | hsl(240, 58%, 45%) |
| HSV | hsv(240, 73%, 71%) |
| CMYK | cmyk(72.8%, 73.3%, 0%, 29.4%) |
| CIE-LAB | lab(29.57, 43.96, -69.06) |
| CIE-LCH | lch(29.57, 81.86, 302.48°) |
| OKLab | oklab(41.15% 0.0123 -0.1998) |
| OKLCH | oklch(41.15% 0.2 273.5) |
| XYZ | xyz(10.5590, 6.0611, 43.7846) |
| Luminance | 0.0606 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 3.42
Indigo Blue
#3A18B1
ΔE00 4.86
Ocean Blue
#4F42B5
ΔE00 5.60
Blue With A Hint Of Purple
#533CC6
ΔE00 5.64
Blue Blue
#2242C7
ΔE00 5.66
True Blue
#010FCC
ΔE00 5.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3130B4 #B3B430
analogous
#3071B4 #3130B4 #7330B4
triadic
#3130B4 #B43130 #30B431
tetradic
#3130B4 #B43071 #B3B430 #30B473
square
#3130B4 #B43071 #B3B430 #30B473
split-complementary
#3130B4 #B47330 #71B430
monochromatic
#171653 #242384 #3130B4 #5251D1 #8281DD
Accessibility & contrast
On white
9.49
#3130B4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.21
#3130B4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3130B4
9.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3130B4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3130B4 | 1.00 | 9.49 | 2.21 | 9.49 |
| #FFFFFF | 9.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004CB8
Deuteranopia (green-blind)
#003FB2
Tritanopia (blue-blind)
#00566F
Achromatopsia (no color)
#464646
Design tokens & code
CSS
--color: #3130b4; /* rgb */ color: rgb(49, 48, 180); /* oklch */ color: oklch(41.1% 0.200 273.5);
Tailwind
colors: {
custom: {
50: '#7d6acc',
500: '#3130b4',
950: '#000000',
},
}SCSS
$custom: #3130b4; $custom-light: #7d6acc; $custom-dark: #000000;
JSON
{
"hex": "#3130b4",
"rgb": {
"r": 49,
"g": 48,
"b": 180
},
"hsl": {
"h": 240.455,
"s": 57.895,
"l": 44.706
},
"oklch": {
"l": 0.41147,
"c": 0.20015,
"h": 273.5
},
"luminance": 0.06062
}Semantic roles & 50–950 ramp
primary
#3130B4
secondary
#C6C679
accent
#E147E0
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0B0613
muted
#7C7A82