#3630B3#3630B3
#3630B3 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.4% C 0.198 H 275.4°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).
Color values
| HEX | #3630B3 |
|---|---|
| RGB | rgb(54, 48, 179) |
| HSL | hsl(243, 58%, 45%) |
| HSV | hsv(243, 73%, 70%) |
| CMYK | cmyk(69.8%, 73.2%, 0%, 29.8%) |
| CIE-LAB | lab(29.79, 44.14, -68.08) |
| CIE-LCH | lch(29.79, 81.14, 302.96°) |
| OKLab | oklab(41.36% 0.0187 -0.1968) |
| OKLCH | oklch(41.36% 0.198 275.4) |
| XYZ | xyz(10.7123, 6.1518, 43.2620) |
| Luminance | 0.0615 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 3.74
Indigo Blue
#3A18B1
ΔE00 4.71
Ocean Blue
#4F42B5
ΔE00 5.34
Blue With A Hint Of Purple
#533CC6
ΔE00 5.35
Blurple
#5539CC
ΔE00 5.73
Blue Blue
#2242C7
ΔE00 5.87
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3630B3 #ADB330
analogous
#306CB3 #3630B3 #7830B3
triadic
#3630B3 #B33630 #30B336
tetradic
#3630B3 #B3306C #ADB330 #30B378
square
#3630B3 #B3306C #ADB330 #30B378
split-complementary
#3630B3 #B37830 #6CB330
monochromatic
#191652 #272383 #3630B3 #5650D0 #8580DD
Accessibility & contrast
On white
9.41
#3630B3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.23
#3630B3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3630B3
9.41:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3630B3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3630B3 | 1.00 | 9.41 | 2.23 | 9.41 |
| #FFFFFF | 9.41 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.41 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004CB7
Deuteranopia (green-blind)
#0040B1
Tritanopia (blue-blind)
#00556F
Achromatopsia (no color)
#464646
Design tokens & code
CSS
--color: #3630b3; /* rgb */ color: rgb(54, 48, 179); /* oklch */ color: oklch(41.4% 0.198 275.4);
Tailwind
colors: {
custom: {
50: '#7f6acb',
500: '#3630b3',
950: '#000000',
},
}SCSS
$custom: #3630b3; $custom-light: #7f6acb; $custom-dark: #000000;
JSON
{
"hex": "#3630b3",
"rgb": {
"r": 54,
"g": 48,
"b": 179
},
"hsl": {
"h": 242.748,
"s": 57.709,
"l": 44.51
},
"oklch": {
"l": 0.41363,
"c": 0.19767,
"h": 275.4
},
"luminance": 0.06153
}Semantic roles & 50–950 ramp
primary
#3630B3
secondary
#C2C679
accent
#E147DA
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0613
muted
#7D7A82