#3D73C3#3D73C3
#3D73C3 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.8% C 0.137 H 258.2°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).
Color values
| HEX | #3D73C3 |
|---|---|
| RGB | rgb(61, 115, 195) |
| HSL | hsl(216, 53%, 50%) |
| HSV | hsv(216, 69%, 76%) |
| CMYK | cmyk(68.7%, 41%, 0%, 23.5%) |
| CIE-LAB | lab(48.50, 8.59, -47.10) |
| CIE-LCH | lch(48.50, 47.87, 280.34°) |
| OKLab | oklab(55.85% -0.0281 -0.1343) |
| OKLCH | oklch(55.85% 0.137 258.2) |
| XYZ | xyz(17.9020, 17.1919, 53.9941) |
| Luminance | 0.1719 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.67
Medium Blue
#2C6FBB
ΔE00 2.68
Flat Blue
#3C73A8
ΔE00 3.66
Bluish
#2976BB
ΔE00 3.83
French Blue
#436BAD
ΔE00 3.96
Mid Blue
#276AB3
ΔE00 4.40
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3D73C3 #C38D3D
analogous
#3DB6C3 #3D73C3 #4A3DC3
triadic
#3D73C3 #C33D73 #73C33D
tetradic
#3D73C3 #C33DB6 #C38D3D #3DC34A
square
#3D73C3 #C33DB6 #C38D3D #3DC34A
split-complementary
#3D73C3 #C34A3D #B6C33D
monochromatic
#203C66 #2E5795 #3D73C3 #6C95D1 #9AB6E0
Accessibility & contrast
On white
4.73
#3D73C3 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.44
#3D73C3 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3D73C3
4.73:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3D73C3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3D73C3 | 1.00 | 4.73 | 4.44 | 4.73 |
| #FFFFFF | 4.73 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.73 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4E7AC6
Deuteranopia (green-blind)
#396DC1
Tritanopia (blue-blind)
#008691
Achromatopsia (no color)
#737373
Design tokens & code
CSS
--color: #3d73c3; /* rgb */ color: rgb(61, 115, 195); /* oklch */ color: oklch(55.8% 0.137 258.2);
Tailwind
colors: {
custom: {
50: '#819ad5',
500: '#3d73c3',
950: '#000000',
},
}SCSS
$custom: #3d73c3; $custom-light: #819ad5; $custom-dark: #000000;
JSON
{
"hex": "#3d73c3",
"rgb": {
"r": 61,
"g": 115,
"b": 195
},
"hsl": {
"h": 215.821,
"s": 52.756,
"l": 50.196
},
"oklch": {
"l": 0.55846,
"c": 0.13725,
"h": 258.2
},
"luminance": 0.17194
}Semantic roles & 50–950 ramp
primary
#3D73C3
secondary
#CCB490
accent
#A24CDC
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0E14
muted
#7D7E83