#4031B7#4031B7
#4031B7 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.6% C 0.199 H 278.8°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).
Color values
| HEX | #4031B7 |
|---|---|
| RGB | rgb(64, 49, 183) |
| HSL | hsl(247, 58%, 45%) |
| HSV | hsv(247, 73%, 72%) |
| CMYK | cmyk(65%, 73.2%, 0%, 28.2%) |
| CIE-LAB | lab(31.12, 46.01, -68.24) |
| CIE-LCH | lch(31.12, 82.30, 303.99°) |
| OKLab | oklab(42.62% 0.0304 -0.197) |
| OKLCH | oklch(42.62% 0.199 278.8) |
| XYZ | xyz(11.7572, 6.7046, 45.4651) |
| Luminance | 0.0671 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue With A Hint Of Purple
#533CC6
ΔE00 4.18
Blurple
#5539CC
ΔE00 4.50
Ocean Blue
#4F42B5
ΔE00 4.58
Sapphire (survey)
#2138AB
ΔE00 4.72
Indigo Blue
#3A18B1
ΔE00 4.89
Purple Blue
#5D21D0
ΔE00 5.53
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4031B7 #A8B731
analogous
#3165B7 #4031B7 #8331B7
triadic
#4031B7 #B74031 #31B740
tetradic
#4031B7 #B73165 #A8B731 #31B783
square
#4031B7 #B73165 #A8B731 #31B783
split-complementary
#4031B7 #B78331 #65B731
monochromatic
#1E1756 #2F2487 #4031B7 #6254D1 #8E84DE
Accessibility & contrast
On white
8.97
#4031B7 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#4031B7 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #4031B7
8.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4031B7 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4031B7 | 1.00 | 8.97 | 2.34 | 8.97 |
| #FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004EBB
Deuteranopia (green-blind)
#0044B5
Tritanopia (blue-blind)
#005771
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #4031b7; /* rgb */ color: rgb(64, 49, 183); /* oklch */ color: oklch(42.6% 0.199 278.8);
Tailwind
colors: {
custom: {
50: '#846bce',
500: '#4031b7',
950: '#000000',
},
}SCSS
$custom: #4031b7; $custom-light: #846bce; $custom-dark: #000000;
JSON
{
"hex": "#4031b7",
"rgb": {
"r": 64,
"g": 49,
"b": 183
},
"hsl": {
"h": 246.716,
"s": 57.759,
"l": 45.49
},
"oklch": {
"l": 0.42618,
"c": 0.19932,
"h": 278.8
},
"luminance": 0.06706
}Semantic roles & 50–950 ramp
primary
#4031B7
secondary
#BFC87C
accent
#E147D0
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0714
muted
#7D7A82