#303AB1#303AB1
#303AB1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.186 H 271.8°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).
Color values
| HEX | #303AB1 |
|---|---|
| RGB | rgb(48, 58, 177) |
| HSL | hsl(235, 57%, 44%) |
| HSV | hsv(235, 73%, 69%) |
| CMYK | cmyk(72.9%, 67.2%, 0%, 30.6%) |
| CIE-LAB | lab(31.41, 36.80, -64.24) |
| CIE-LCH | lch(31.41, 74.04, 299.81°) |
| OKLab | oklab(42.37% 0.0059 -0.1857) |
| OKLCH | oklch(42.37% 0.186 271.8) |
| XYZ | xyz(10.6651, 6.8277, 42.3423) |
| Luminance | 0.0683 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.76
Blue Blue
#2242C7
ΔE00 3.73
Ocean Blue
#4F42B5
ΔE00 4.40
Blueberry
#464196
ΔE00 5.45
Blue With A Hint Of Purple
#533CC6
ΔE00 5.56
Blurple
#5539CC
ΔE00 6.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#303AB1 #B1A730
analogous
#307BB1 #303AB1 #6730B1
triadic
#303AB1 #B1303A #3AB130
tetradic
#303AB1 #B1307B #B1A730 #30B167
square
#303AB1 #B1307B #B1A730 #30B167
split-complementary
#303AB1 #B16730 #7BB130
monochromatic
#161A51 #232A81 #303AB1 #4F59CF #7F86DC
Accessibility & contrast
On white
8.88
#303AB1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.37
#303AB1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #303AB1
8.88:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##303AB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##303AB1 | 1.00 | 8.88 | 2.37 | 8.88 |
| #FFFFFF | 8.88 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.37 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.88 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050B5
Deuteranopia (green-blind)
#0044AF
Tritanopia (blue-blind)
#005A70
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #303ab1; /* rgb */ color: rgb(48, 58, 177); /* oklch */ color: oklch(42.4% 0.186 271.8);
Tailwind
colors: {
custom: {
50: '#7b70c9',
500: '#303ab1',
950: '#000000',
},
}SCSS
$custom: #303ab1; $custom-light: #7b70c9; $custom-dark: #000000;
JSON
{
"hex": "#303ab1",
"rgb": {
"r": 48,
"g": 58,
"b": 177
},
"hsl": {
"h": 235.349,
"s": 57.333,
"l": 44.118
},
"oklch": {
"l": 0.42371,
"c": 0.18582,
"h": 271.8
},
"luminance": 0.06829
}Semantic roles & 50–950 ramp
primary
#303AB1
secondary
#C5BF78
accent
#D547E1
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82