#3337B9#3337B9
#3337B9 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.8% C 0.199 H 272.9°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).
Color values
| HEX | #3337B9 |
|---|---|
| RGB | rgb(51, 55, 185) |
| HSL | hsl(238, 57%, 46%) |
| HSV | hsv(238, 72%, 73%) |
| CMYK | cmyk(72.4%, 70.3%, 0%, 27.5%) |
| CIE-LAB | lab(31.66, 41.74, -68.56) |
| CIE-LCH | lch(31.66, 80.27, 301.33°) |
| OKLab | oklab(42.83% 0.0101 -0.1983) |
| OKLCH | oklch(42.83% 0.199 272.9) |
| XYZ | xyz(11.4854, 6.9378, 46.6234) |
| Luminance | 0.0694 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.96
Blue Blue
#2242C7
ΔE00 3.88
Ocean Blue
#4F42B5
ΔE00 4.29
Blue With A Hint Of Purple
#533CC6
ΔE00 4.59
Blurple
#5539CC
ΔE00 5.14
Blue (survey)
#0343DF
ΔE00 5.95
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3337B9 #B9B533
analogous
#337AB9 #3337B9 #7233B9
triadic
#3337B9 #B93337 #37B933
tetradic
#3337B9 #B9337A #B9B533 #33B972
square
#3337B9 #B9337A #B9B533 #33B972
split-complementary
#3337B9 #B97233 #7AB933
monochromatic
#191A59 #262989 #3337B9 #585CD1 #888BDE
Accessibility & contrast
On white
8.79
#3337B9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.39
#3337B9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3337B9
8.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3337B9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3337B9 | 1.00 | 8.79 | 2.39 | 8.79 |
| #FFFFFF | 8.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.39 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051BD
Deuteranopia (green-blind)
#0044B7
Tritanopia (blue-blind)
#005B74
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #3337b9; /* rgb */ color: rgb(51, 55, 185); /* oklch */ color: oklch(42.8% 0.199 272.9);
Tailwind
colors: {
custom: {
50: '#7f6fcf',
500: '#3337b9',
950: '#000000',
},
}SCSS
$custom: #3337b9; $custom-light: #7f6fcf; $custom-dark: #000000;
JSON
{
"hex": "#3337b9",
"rgb": {
"r": 51,
"g": 55,
"b": 185
},
"hsl": {
"h": 238.209,
"s": 56.78,
"l": 46.275
},
"oklch": {
"l": 0.4283,
"c": 0.19857,
"h": 272.9
},
"luminance": 0.06939
}Semantic roles & 50–950 ramp
primary
#3337B9
secondary
#C8C680
accent
#DC48E0
background
#F8F6FC
surface
#F0ECF9
border
#CBC7D2
text
#0C0714
muted
#7D7A82