#333AB5#333AB5
#333AB5 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.190 H 272.7°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).
Color values
| HEX | #333AB5 |
|---|---|
| RGB | rgb(51, 58, 181) |
| HSL | hsl(237, 56%, 45%) |
| HSV | hsv(237, 72%, 71%) |
| CMYK | cmyk(71.8%, 68%, 0%, 29%) |
| CIE-LAB | lab(31.95, 38.55, -65.72) |
| CIE-LCH | lch(31.95, 76.19, 300.39°) |
| OKLab | oklab(42.92% 0.0088 -0.19) |
| OKLCH | oklch(42.92% 0.19 272.7) |
| XYZ | xyz(11.2160, 7.0650, 44.4797) |
| Luminance | 0.0707 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.41
Blue Blue
#2242C7
ΔE00 3.50
Ocean Blue
#4F42B5
ΔE00 4.00
Blue With A Hint Of Purple
#533CC6
ΔE00 4.91
Blurple
#5539CC
ΔE00 5.61
Blueberry
#464196
ΔE00 5.73
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333AB5 #B5AE33
analogous
#337BB5 #333AB5 #6D33B5
triadic
#333AB5 #B5333A #3AB533
tetradic
#333AB5 #B5337B #B5AE33 #33B56D
square
#333AB5 #B5337B #B5AE33 #33B56D
split-complementary
#333AB5 #B56D33 #7BB533
monochromatic
#181B56 #262B85 #333AB5 #565CCF #868ADD
Accessibility & contrast
On white
8.70
#333AB5 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.41
#333AB5 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333AB5
8.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333AB5 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333AB5 | 1.00 | 8.70 | 2.41 | 8.70 |
| #FFFFFF | 8.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.41 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B9
Deuteranopia (green-blind)
#0045B3
Tritanopia (blue-blind)
#005B72
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #333ab5; /* rgb */ color: rgb(51, 58, 181); /* oklch */ color: oklch(42.9% 0.190 272.7);
Tailwind
colors: {
custom: {
50: '#7d71cc',
500: '#333ab5',
950: '#000000',
},
}SCSS
$custom: #333ab5; $custom-light: #7d71cc; $custom-dark: #000000;
JSON
{
"hex": "#333ab5",
"rgb": {
"r": 51,
"g": 58,
"b": 181
},
"hsl": {
"h": 236.769,
"s": 56.034,
"l": 45.49
},
"oklch": {
"l": 0.42924,
"c": 0.19019,
"h": 272.7
},
"luminance": 0.07066
}Semantic roles & 50–950 ramp
primary
#333AB5
secondary
#C6C27D
accent
#D748DF
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0714
muted
#7C7A82