#333DA3#333DA3
#333DA3 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.163 H 272.8°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #333DA3 |
|---|---|
| RGB | rgb(51, 61, 163) |
| HSL | hsl(235, 52%, 42%) |
| HSV | hsv(235, 69%, 64%) |
| CMYK | cmyk(68.7%, 62.6%, 0%, 36.1%) |
| CIE-LAB | lab(31.08, 30.27, -56.39) |
| CIE-LCH | lch(31.08, 64.00, 298.23°) |
| OKLab | oklab(41.79% 0.008 -0.1626) |
| OKLCH | oklch(41.79% 0.163 272.8) |
| XYZ | xyz(9.6426, 6.6847, 35.4253) |
| Luminance | 0.0669 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.27
Blueberry
#464196
ΔE00 3.77
Ocean Blue
#4F42B5
ΔE00 4.94
Blue Blue
#2242C7
ΔE00 5.04
Darkslateblue
#483D8B
ΔE00 5.53
Cobalt
#0047AB
ΔE00 5.79
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#333DA3 #A39933
analogous
#3375A3 #333DA3 #6133A3
triadic
#333DA3 #A3333D #3DA333
tetradic
#333DA3 #A33375 #A39933 #33A361
square
#333DA3 #A33375 #A39933 #33A361
split-complementary
#333DA3 #A36133 #75A333
monochromatic
#161A46 #242C74 #333DA3 #4C57C7 #7B83D6
Accessibility & contrast
On white
8.99
#333DA3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#333DA3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #333DA3
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##333DA3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##333DA3 | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004EA6
Deuteranopia (green-blind)
#0044A1
Tritanopia (blue-blind)
#00576A
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #333da3; /* rgb */ color: rgb(51, 61, 163); /* oklch */ color: oklch(41.8% 0.163 272.8);
Tailwind
colors: {
custom: {
50: '#7972bf',
500: '#333da3',
950: '#000000',
},
}SCSS
$custom: #333da3; $custom-light: #7972bf; $custom-dark: #000000;
JSON
{
"hex": "#333da3",
"rgb": {
"r": 51,
"g": 61,
"b": 163
},
"hsl": {
"h": 234.643,
"s": 52.336,
"l": 41.961
},
"oklch": {
"l": 0.41793,
"c": 0.16284,
"h": 272.8
},
"luminance": 0.06686
}Semantic roles & 50–950 ramp
primary
#333DA3
secondary
#BEB873
accent
#CF4CDC
background
#F7F6FB
surface
#EEECF7
border
#C9C7D0
text
#0A0812
muted
#7C7B81