#3743C0#3743C0
#3743C0 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.193 H 271.9°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).
Color values
| HEX | #3743C0 |
|---|---|
| RGB | rgb(55, 67, 192) |
| HSL | hsl(235, 55%, 48%) |
| HSV | hsv(235, 71%, 75%) |
| CMYK | cmyk(71.4%, 65.1%, 0%, 24.7%) |
| CIE-LAB | lab(35.26, 37.27, -66.77) |
| CIE-LCH | lch(35.26, 76.47, 299.17°) |
| OKLab | oklab(45.7% 0.0064 -0.1929) |
| OKLCH | oklch(45.7% 0.193 271.9) |
| XYZ | xyz(13.0939, 8.6310, 50.8348) |
| Luminance | 0.0863 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 1.75
Ocean Blue
#4F42B5
ΔE00 3.56
Blue (survey)
#0343DF
ΔE00 3.98
Blue With A Hint Of Purple
#533CC6
ΔE00 4.52
Sapphire (survey)
#2138AB
ΔE00 4.57
Blurple
#5539CC
ΔE00 5.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3743C0 #C0B437
analogous
#3787C0 #3743C0 #7037C0
triadic
#3743C0 #C03743 #43C037
tetradic
#3743C0 #C03787 #C0B437 #37C070
square
#3743C0 #C03787 #C0B437 #37C070
split-complementary
#3743C0 #C07037 #87C037
monochromatic
#1C2261 #293290 #3743C0 #626CD2 #9299E0
Accessibility & contrast
On white
7.70
#3743C0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.73
#3743C0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3743C0
7.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3743C0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3743C0 | 1.00 | 7.70 | 2.73 | 7.70 |
| #FFFFFF | 7.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.73 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0059C4
Deuteranopia (green-blind)
#004DBE
Tritanopia (blue-blind)
#00647B
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #3743c0; /* rgb */ color: rgb(55, 67, 192); /* oklch */ color: oklch(45.7% 0.193 271.9);
Tailwind
colors: {
custom: {
50: '#8177d4',
500: '#3743c0',
950: '#000000',
},
}SCSS
$custom: #3743c0; $custom-light: #8177d4; $custom-dark: #000000;
JSON
{
"hex": "#3743c0",
"rgb": {
"r": 55,
"g": 67,
"b": 192
},
"hsl": {
"h": 234.745,
"s": 55.466,
"l": 48.431
},
"oklch": {
"l": 0.45698,
"c": 0.19304,
"h": 271.9
},
"luminance": 0.08632
}Semantic roles & 50–950 ramp
primary
#3743C0
secondary
#CBC588
accent
#D249DF
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0814
muted
#7D7B83