#373BD9#373BD9
#373BD9 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.9% C 0.232 H 271.9°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).
Color values
| HEX | #373BD9 |
|---|---|
| RGB | rgb(55, 59, 217) |
| HSL | hsl(239, 68%, 53%) |
| HSV | hsv(239, 75%, 85%) |
| CMYK | cmyk(74.7%, 72.8%, 0%, 14.9%) |
| CIE-LAB | lab(35.88, 50.47, -80.26) |
| CIE-LCH | lch(35.88, 94.81, 302.16°) |
| OKLab | oklab(46.86% 0.0078 -0.2323) |
| OKLCH | oklch(46.86% 0.232 271.9) |
| XYZ | xyz(15.6597, 8.9482, 66.5341) |
| Luminance | 0.0895 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue (survey)
#0343DF
ΔE00 3.37
Vibrant Blue
#0339F8
ΔE00 3.44
Blurple
#5539CC
ΔE00 3.52
Blue With A Hint Of Purple
#533CC6
ΔE00 3.60
Blue Blue
#2242C7
ΔE00 3.90
Vivid Blue
#152EFF
ΔE00 4.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#373BD9 #D9D537
analogous
#378CD9 #373BD9 #8437D9
triadic
#373BD9 #D9373B #3BD937
tetradic
#373BD9 #D9378C #D9D537 #37D984
square
#373BD9 #D9378C #D9D537 #37D984
split-complementary
#373BD9 #D98437 #8CD937
monochromatic
#181A7E #2225B1 #373BD9 #6A6DE3 #9EA0ED
Accessibility & contrast
On white
7.53
#373BD9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.79
#373BD9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #373BD9
7.53:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##373BD9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##373BD9 | 1.00 | 7.53 | 2.79 | 7.53 |
| #FFFFFF | 7.53 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.79 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.53 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005CDE
Deuteranopia (green-blind)
#004CD6
Tritanopia (blue-blind)
#006987
Achromatopsia (no color)
#545454
Design tokens & code
CSS
--color: #373bd9; /* rgb */ color: rgb(55, 59, 217); /* oklch */ color: oklch(46.9% 0.232 271.9);
Tailwind
colors: {
custom: {
50: '#8773e6',
500: '#373bd9',
950: '#000000',
},
}SCSS
$custom: #373bd9; $custom-light: #8773e6; $custom-dark: #000000;
JSON
{
"hex": "#373bd9",
"rgb": {
"r": 55,
"g": 59,
"b": 217
},
"hsl": {
"h": 238.519,
"s": 68.067,
"l": 53.333
},
"oklch": {
"l": 0.46857,
"c": 0.23245,
"h": 271.9
},
"luminance": 0.0895
}Semantic roles & 50–950 ramp
primary
#373BD9
secondary
#D9D793
accent
#E73DEB
background
#F9F7FE
surface
#F1EDFD
border
#CBC8D5
text
#0D0816
muted
#7E7B84