#5F55BB#5F55BB
#5F55BB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.3% C 0.155 H 283.9°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #5F55BB |
|---|---|
| RGB | rgb(95, 85, 187) |
| HSL | hsl(246, 43%, 53%) |
| HSV | hsv(246, 55%, 73%) |
| CMYK | cmyk(49.2%, 54.5%, 0%, 26.7%) |
| CIE-LAB | lab(42.03, 31.24, -52.73) |
| CIE-LCH | lch(42.03, 61.29, 300.65°) |
| OKLab | oklab(51.29% 0.0373 -0.1505) |
| OKLCH | oklch(51.29% 0.155 283.9) |
| XYZ | xyz(16.9348, 12.5169, 48.5278) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Iris
#6258C4
ΔE00 1.66
Slate Blue
#6A5ACD
ΔE00 3.51
Light Indigo
#6D5ACF
ΔE00 4.02
Dark Periwinkle
#665FD1
ΔE00 4.54
Warm Blue
#4B57DB
ΔE00 5.46
Ocean Blue
#4F42B5
ΔE00 5.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5F55BB #B1BB55
analogous
#557EBB #5F55BB #9255BB
triadic
#5F55BB #BB5F55 #55BB5F
tetradic
#5F55BB #BB557E #B1BB55 #55BB92
square
#5F55BB #BB557E #B1BB55 #55BB92
split-complementary
#5F55BB #BB9255 #7EBB55
monochromatic
#312B6B #453C97 #5F55BB #8881CC #B1ACDE
Accessibility & contrast
On white
5.99
#5F55BB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#5F55BB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #5F55BB
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5F55BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##5F55BB | 1.00 | 5.99 | 3.50 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1B66BF
Deuteranopia (green-blind)
#1460B9
Tritanopia (blue-blind)
#3E6C80
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #5f55bb; /* rgb */ color: rgb(95, 85, 187); /* oklch */ color: oklch(51.3% 0.155 283.9);
Tailwind
colors: {
custom: {
50: '#9385d0',
500: '#5f55bb',
950: '#000000',
},
}SCSS
$custom: #5f55bb; $custom-light: #9385d0; $custom-dark: #000000;
JSON
{
"hex": "#5f55bb",
"rgb": {
"r": 95,
"g": 85,
"b": 187
},
"hsl": {
"h": 245.882,
"s": 42.857,
"l": 53.333
},
"oklch": {
"l": 0.51291,
"c": 0.15503,
"h": 283.9
},
"luminance": 0.12518
}Semantic roles & 50–950 ramp
primary
#5F55BB
secondary
#C8CCA0
accent
#D355C6
background
#F9F8FC
surface
#F2EFF9
border
#CCCAD2
text
#0E0B14
muted
#7E7C82