#3F50AA#3F50AA
#3F50AA is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.8% C 0.145 H 271.6°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).
Color values
| HEX | #3F50AA |
|---|---|
| RGB | rgb(63, 80, 170) |
| HSL | hsl(230, 46%, 46%) |
| HSV | hsv(230, 63%, 67%) |
| CMYK | cmyk(62.9%, 52.9%, 0%, 33.3%) |
| CIE-LAB | lab(37.29, 22.33, -50.46) |
| CIE-LCH | lch(37.29, 55.18, 293.87°) |
| OKLab | oklab(46.79% 0.0042 -0.1447) |
| OKLCH | oklch(46.79% 0.145 271.6) |
| XYZ | xyz(12.1718, 9.6953, 39.2524) |
| Luminance | 0.0970 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire
#0F52BA
ΔE00 4.89
Cobalt
#0047AB
ΔE00 5.27
Denim Blue
#3B5B92
ΔE00 5.95
Blue Blue
#2242C7
ΔE00 6.01
Blueberry
#464196
ΔE00 6.07
Cobalt (survey)
#1E488F
ΔE00 6.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F50AA #AA993F
analogous
#3F85AA #3F50AA #633FAA
triadic
#3F50AA #AA3F50 #50AA3F
tetradic
#3F50AA #AA3F85 #AA993F #3FAA63
square
#3F50AA #AA3F85 #AA993F #3FAA63
split-complementary
#3F50AA #AA633F #85AA3F
monochromatic
#1E2651 #2E3B7D #3F50AA #6271C5 #8E99D5
Accessibility & contrast
On white
7.14
#3F50AA on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.94
#3F50AA on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F50AA
7.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F50AA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F50AA | 1.00 | 7.14 | 2.94 | 7.14 |
| #FFFFFF | 7.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.94 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#195DAD
Deuteranopia (green-blind)
#0053A8
Tritanopia (blue-blind)
#006575
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #3f50aa; /* rgb */ color: rgb(63, 80, 170); /* oklch */ color: oklch(46.8% 0.145 271.6);
Tailwind
colors: {
custom: {
50: '#7f80c4',
500: '#3f50aa',
950: '#000000',
},
}SCSS
$custom: #3f50aa; $custom-light: #7f80c4; $custom-dark: #000000;
JSON
{
"hex": "#3f50aa",
"rgb": {
"r": 63,
"g": 80,
"b": 170
},
"hsl": {
"h": 230.467,
"s": 45.923,
"l": 45.686
},
"oklch": {
"l": 0.46787,
"c": 0.14477,
"h": 271.6
},
"luminance": 0.09696
}Semantic roles & 50–950 ramp
primary
#3F50AA
secondary
#C0B785
accent
#C152D6
background
#F8F7FC
surface
#EFEEF8
border
#CAC9D1
text
#0B0A13
muted
#7C7C82