#333DB7#333DB7
#333DB7 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.6% C 0.189 H 272.0°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).
Color values
| HEX | #333DB7 |
|---|---|
| RGB | rgb(51, 61, 183) |
| HSL | hsl(235, 56%, 46%) |
| HSV | hsv(235, 72%, 72%) |
| CMYK | cmyk(72.1%, 66.7%, 0%, 28.2%) |
| CIE-LAB | lab(32.83, 37.39, -65.47) |
| CIE-LCH | lch(32.83, 75.39, 299.73°) |
| OKLab | oklab(43.62% 0.0067 -0.1892) |
| OKLCH | oklch(43.62% 0.189 272) |
| XYZ | xyz(11.5783, 7.4590, 45.6201) |
| Luminance | 0.0746 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.72
Blue Blue
#2242C7
ΔE00 2.77
Ocean Blue
#4F42B5
ΔE00 3.77
Blue With A Hint Of Purple
#533CC6
ΔE00 4.86
Blue (survey)
#0343DF
ΔE00 5.34
Blurple
#5539CC
ΔE00 5.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333DB7 #B7AD33
analogous
#337FB7 #333DB7 #6B33B7
triadic
#333DB7 #B7333D #3DB733
tetradic
#333DB7 #B7337F #B7AD33 #33B76B
square
#333DB7 #B7337F #B7AD33 #33B76B
split-complementary
#333DB7 #B76B33 #7FB733
monochromatic
#181D57 #262D87 #333DB7 #5760D0 #878DDE
Accessibility & contrast
On white
8.43
#333DB7 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.49
#333DB7 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333DB7
8.43:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333DB7 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333DB7 | 1.00 | 8.43 | 2.49 | 8.43 |
| #FFFFFF | 8.43 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.49 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.43 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0053BB
Deuteranopia (green-blind)
#0047B5
Tritanopia (blue-blind)
#005E75
Achromatopsia (no color)
#4D4D4D
Design tokens & code
CSS
--color: #333db7; /* rgb */ color: rgb(51, 61, 183); /* oklch */ color: oklch(43.6% 0.189 272.0);
Tailwind
colors: {
custom: {
50: '#7e73ce',
500: '#333db7',
950: '#000000',
},
}SCSS
$custom: #333db7; $custom-light: #7e73ce; $custom-dark: #000000;
JSON
{
"hex": "#333db7",
"rgb": {
"r": 51,
"g": 61,
"b": 183
},
"hsl": {
"h": 235.455,
"s": 56.41,
"l": 45.882
},
"oklch": {
"l": 0.43616,
"c": 0.18936,
"h": 272
},
"luminance": 0.0746
}Semantic roles & 50–950 ramp
primary
#333DB7
secondary
#C7C27F
accent
#D448E0
background
#F8F7FC
surface
#EFEDF9
border
#CAC8D2
text
#0B0814
muted
#7C7B82