#333CA8#333CA8
#333CA8 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.171 H 272.9°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).
Color values
| HEX | #333CA8 |
|---|---|
| RGB | rgb(51, 60, 168) |
| HSL | hsl(235, 53%, 43%) |
| HSV | hsv(235, 70%, 66%) |
| CMYK | cmyk(69.6%, 64.3%, 0%, 34.1%) |
| CIE-LAB | lab(31.26, 32.71, -59.10) |
| CIE-LCH | lch(31.26, 67.55, 298.96°) |
| OKLab | oklab(42.06% 0.0085 -0.1706) |
| OKLCH | oklch(42.06% 0.171 272.9) |
| XYZ | xyz(10.0466, 6.7617, 37.8139) |
| Luminance | 0.0676 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.88
Blueberry
#464196
ΔE00 4.26
Blue Blue
#2242C7
ΔE00 4.50
Ocean Blue
#4F42B5
ΔE00 4.52
Darkslateblue
#483D8B
ΔE00 6.01
Cobalt
#0047AB
ΔE00 6.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333CA8 #A89F33
analogous
#3376A8 #333CA8 #6533A8
triadic
#333CA8 #A8333C #3CA833
tetradic
#333CA8 #A83376 #A89F33 #33A865
square
#333CA8 #A83376 #A89F33 #33A865
split-complementary
#333CA8 #A86533 #76A833
monochromatic
#161A4A #252B79 #333CA8 #4F58C9 #7E85D8
Accessibility & contrast
On white
8.93
#333CA8 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.35
#333CA8 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333CA8
8.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333CA8 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333CA8 | 1.00 | 8.93 | 2.35 | 8.93 |
| #FFFFFF | 8.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.35 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FAB
Deuteranopia (green-blind)
#0044A6
Tritanopia (blue-blind)
#00586C
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #333ca8; /* rgb */ color: rgb(51, 60, 168); /* oklch */ color: oklch(42.1% 0.171 272.9);
Tailwind
colors: {
custom: {
50: '#7a72c3',
500: '#333ca8',
950: '#000000',
},
}SCSS
$custom: #333ca8; $custom-light: #7a72c3; $custom-dark: #000000;
JSON
{
"hex": "#333ca8",
"rgb": {
"r": 51,
"g": 60,
"b": 168
},
"hsl": {
"h": 235.385,
"s": 53.425,
"l": 42.941
},
"oklch": {
"l": 0.42058,
"c": 0.17082,
"h": 272.9
},
"luminance": 0.06763
}Semantic roles & 50–950 ramp
primary
#333CA8
secondary
#C1BB76
accent
#D24BDD
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0813
muted
#7C7B82