#333BB1#333BB1
#333BB1 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.184 H 272.7°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).
Color values
| HEX | #333BB1 |
|---|---|
| RGB | rgb(51, 59, 177) |
| HSL | hsl(236, 55%, 45%) |
| HSV | hsv(236, 71%, 69%) |
| CMYK | cmyk(71.2%, 66.7%, 0%, 30.6%) |
| CIE-LAB | lab(31.82, 36.53, -63.56) |
| CIE-LCH | lch(31.82, 73.31, 299.88°) |
| OKLab | oklab(42.71% 0.0086 -0.1837) |
| OKLCH | oklch(42.71% 0.184 272.7) |
| XYZ | xyz(10.8624, 7.0050, 42.3661) |
| Luminance | 0.0701 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.07
Blue Blue
#2242C7
ΔE00 3.66
Ocean Blue
#4F42B5
ΔE00 4.04
Blueberry
#464196
ΔE00 5.22
Blue With A Hint Of Purple
#533CC6
ΔE00 5.32
Blurple
#5539CC
ΔE00 6.08
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333BB1 #B1A933
analogous
#337AB1 #333BB1 #6A33B1
triadic
#333BB1 #B1333B #3BB133
tetradic
#333BB1 #B1337A #B1A933 #33B16A
square
#333BB1 #B1337A #B1A933 #33B16A
split-complementary
#333BB1 #B16A33 #7AB133
monochromatic
#181B52 #252B81 #333BB1 #545BCE #8389DB
Accessibility & contrast
On white
8.75
#333BB1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.40
#333BB1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333BB1
8.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333BB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333BB1 | 1.00 | 8.75 | 2.40 | 8.75 |
| #FFFFFF | 8.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B5
Deuteranopia (green-blind)
#0045AF
Tritanopia (blue-blind)
#005A71
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #333bb1; /* rgb */ color: rgb(51, 59, 177); /* oklch */ color: oklch(42.7% 0.184 272.7);
Tailwind
colors: {
custom: {
50: '#7c71c9',
500: '#333bb1',
950: '#000000',
},
}SCSS
$custom: #333bb1; $custom-light: #7c71c9; $custom-dark: #000000;
JSON
{
"hex": "#333bb1",
"rgb": {
"r": 51,
"g": 59,
"b": 177
},
"hsl": {
"h": 236.19,
"s": 55.263,
"l": 44.706
},
"oklch": {
"l": 0.42713,
"c": 0.18389,
"h": 272.7
},
"luminance": 0.07006
}Semantic roles & 50–950 ramp
primary
#333BB1
secondary
#C5C07B
accent
#D549DF
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82