#3F43AF#3F43AF
#3F43AF is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.7% C 0.169 H 275.6°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).
Color values
| HEX | #3F43AF |
|---|---|
| RGB | rgb(63, 67, 175) |
| HSL | hsl(238, 47%, 47%) |
| HSV | hsv(238, 64%, 69%) |
| CMYK | cmyk(64%, 61.7%, 0%, 31.4%) |
| CIE-LAB | lab(34.32, 32.46, -58.25) |
| CIE-LCH | lch(34.32, 66.68, 299.13°) |
| OKLab | oklab(44.7% 0.0164 -0.1677) |
| OKLCH | oklch(44.7% 0.169 275.6) |
| XYZ | xyz(11.7924, 8.1652, 41.5037) |
| Luminance | 0.0817 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ocean Blue
#4F42B5
ΔE00 2.78
Blue Blue
#2242C7
ΔE00 3.85
Sapphire (survey)
#2138AB
ΔE00 4.08
Blueberry
#464196
ΔE00 4.16
Blue With A Hint Of Purple
#533CC6
ΔE00 5.11
Blurple
#5539CC
ΔE00 6.10
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F43AF #AFAB3F
analogous
#3F7BAF #3F43AF #733FAF
triadic
#3F43AF #AF3F43 #43AF3F
tetradic
#3F43AF #AF3F7B #AFAB3F #3FAF73
square
#3F43AF #AF3F7B #AFAB3F #3FAF73
split-complementary
#3F43AF #AF733F #7BAF3F
monochromatic
#1F2155 #2F3282 #3F43AF #6468C7 #9194D7
Accessibility & contrast
On white
7.98
#3F43AF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#3F43AF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F43AF
7.98:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F43AF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F43AF | 1.00 | 7.98 | 2.63 | 7.98 |
| #FFFFFF | 7.98 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.98 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0056B3
Deuteranopia (green-blind)
#004CAD
Tritanopia (blue-blind)
#005E72
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #3f43af; /* rgb */ color: rgb(63, 67, 175); /* oklch */ color: oklch(44.7% 0.169 275.6);
Tailwind
colors: {
custom: {
50: '#8177c8',
500: '#3f43af',
950: '#000000',
},
}SCSS
$custom: #3f43af; $custom-light: #8177c8; $custom-dark: #000000;
JSON
{
"hex": "#3f43af",
"rgb": {
"r": 63,
"g": 67,
"b": 175
},
"hsl": {
"h": 237.857,
"s": 47.059,
"l": 46.667
},
"oklch": {
"l": 0.44696,
"c": 0.16853,
"h": 275.6
},
"luminance": 0.08166
}Semantic roles & 50–950 ramp
primary
#3F43AF
secondary
#C3C087
accent
#D251D7
background
#F8F7FC
surface
#F0EDF8
border
#CBC8D1
text
#0B0813
muted
#7C7B82