#333FA6#333FA6
#333FA6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.164 H 272.2°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).
Color values
| HEX | #333FA6 |
|---|---|
| RGB | rgb(51, 63, 166) |
| HSL | hsl(234, 53%, 43%) |
| HSV | hsv(234, 69%, 65%) |
| CMYK | cmyk(69.3%, 62%, 0%, 34.9%) |
| CIE-LAB | lab(31.83, 30.05, -56.96) |
| CIE-LCH | lch(31.83, 64.41, 297.82°) |
| OKLab | oklab(42.43% 0.0063 -0.1643) |
| OKLCH | oklch(42.43% 0.164 272.2) |
| XYZ | xyz(10.0234, 7.0110, 36.8940) |
| Luminance | 0.0701 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.47
Blueberry
#464196
ΔE00 3.96
Blue Blue
#2242C7
ΔE00 4.50
Ocean Blue
#4F42B5
ΔE00 4.71
Cobalt
#0047AB
ΔE00 5.31
Darkslateblue
#483D8B
ΔE00 5.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333FA6 #A69A33
analogous
#3379A6 #333FA6 #6033A6
triadic
#333FA6 #A6333F #3FA633
tetradic
#333FA6 #A63379 #A69A33 #33A660
square
#333FA6 #A63379 #A69A33 #33A660
split-complementary
#333FA6 #A66033 #79A633
monochromatic
#161B48 #252D77 #333FA6 #4E5AC9 #7C86D7
Accessibility & contrast
On white
8.74
#333FA6 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.40
#333FA6 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333FA6
8.74:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333FA6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333FA6 | 1.00 | 8.74 | 2.40 | 8.74 |
| #FFFFFF | 8.74 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.74 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050A9
Deuteranopia (green-blind)
#0046A4
Tritanopia (blue-blind)
#00596C
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #333fa6; /* rgb */ color: rgb(51, 63, 166); /* oklch */ color: oklch(42.4% 0.164 272.2);
Tailwind
colors: {
custom: {
50: '#7a74c1',
500: '#333fa6',
950: '#000000',
},
}SCSS
$custom: #333fa6; $custom-light: #7a74c1; $custom-dark: #000000;
JSON
{
"hex": "#333fa6",
"rgb": {
"r": 51,
"g": 63,
"b": 166
},
"hsl": {
"h": 233.739,
"s": 52.995,
"l": 42.549
},
"oklch": {
"l": 0.42428,
"c": 0.16443,
"h": 272.2
},
"luminance": 0.07012
}Semantic roles & 50–950 ramp
primary
#333FA6
secondary
#C0B875
accent
#CD4BDC
background
#F8F7FC
surface
#EFEDF8
border
#CAC8D1
text
#0A0812
muted
#7C7B81