#333AB1#333AB1
#333AB1 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.185 H 272.9°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).
Color values
| HEX | #333AB1 |
|---|---|
| RGB | rgb(51, 58, 177) |
| HSL | hsl(237, 55%, 45%) |
| HSV | hsv(237, 71%, 69%) |
| CMYK | cmyk(71.2%, 67.2%, 0%, 30.6%) |
| CIE-LAB | lab(31.59, 37.15, -63.95) |
| CIE-LCH | lch(31.59, 73.96, 300.16°) |
| OKLab | oklab(42.54% 0.0092 -0.1848) |
| OKLCH | oklch(42.54% 0.185 272.9) |
| XYZ | xyz(10.8114, 6.9032, 42.3491) |
| Luminance | 0.0690 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.05
Blue Blue
#2242C7
ΔE00 3.83
Ocean Blue
#4F42B5
ΔE00 4.12
Blue With A Hint Of Purple
#533CC6
ΔE00 5.28
Blueberry
#464196
ΔE00 5.31
Blurple
#5539CC
ΔE00 6.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333AB1 #B1AA33
analogous
#3379B1 #333AB1 #6B33B1
triadic
#333AB1 #B1333A #3AB133
tetradic
#333AB1 #B13379 #B1AA33 #33B16B
square
#333AB1 #B13379 #B1AA33 #33B16B
split-complementary
#333AB1 #B16B33 #79B133
monochromatic
#181B52 #252A81 #333AB1 #545ACE #8388DB
Accessibility & contrast
On white
8.82
#333AB1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#333AB1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333AB1
8.82:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333AB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333AB1 | 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)
#0050B5
Deuteranopia (green-blind)
#0044AF
Tritanopia (blue-blind)
#005A70
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #333ab1; /* rgb */ color: rgb(51, 58, 177); /* oklch */ color: oklch(42.5% 0.185 272.9);
Tailwind
colors: {
custom: {
50: '#7d70c9',
500: '#333ab1',
950: '#000000',
},
}SCSS
$custom: #333ab1; $custom-light: #7d70c9; $custom-dark: #000000;
JSON
{
"hex": "#333ab1",
"rgb": {
"r": 51,
"g": 58,
"b": 177
},
"hsl": {
"h": 236.667,
"s": 55.263,
"l": 44.706
},
"oklch": {
"l": 0.42544,
"c": 0.18504,
"h": 272.9
},
"luminance": 0.06904
}Semantic roles & 50–950 ramp
primary
#333AB1
secondary
#C5C17B
accent
#D649DF
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82