#351FBB#351FBB
#351FBB is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 40.1% C 0.222 H 275.9°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).
Color values
| HEX | #351FBB |
|---|---|
| RGB | rgb(53, 31, 187) |
| HSL | hsl(248, 72%, 43%) |
| HSV | hsv(248, 83%, 73%) |
| CMYK | cmyk(71.7%, 83.4%, 0%, 26.7%) |
| CIE-LAB | lab(27.64, 55.01, -76.40) |
| CIE-LCH | lch(27.64, 94.15, 305.76°) |
| OKLab | oklab(40.09% 0.023 -0.2208) |
| OKLCH | oklch(40.09% 0.222 275.9) |
| XYZ | xyz(10.9249, 5.3237, 47.4559) |
| Luminance | 0.0532 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 1.83
True Blue
#010FCC
ΔE00 3.15
Mediumblue
#0000CD
ΔE00 3.88
Violet Blue
#510AC9
ΔE00 3.91
Ultramarine Blue
#1805DB
ΔE00 4.00
Ultramarine
#2000B1
ΔE00 4.46
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#351FBB #A5BB1F
analogous
#1F57BB #351FBB #831FBB
triadic
#351FBB #BB351F #1FBB35
tetradic
#351FBB #BB1F57 #A5BB1F #1FBB83
square
#351FBB #BB1F57 #A5BB1F #1FBB83
split-complementary
#351FBB #BB831F #57BB1F
monochromatic
#170E52 #261687 #351FBB #5039DE #7F6EE7
Accessibility & contrast
On white
10.17
#351FBB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.07
#351FBB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #351FBB
10.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##351FBB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##351FBB | 1.00 | 10.17 | 2.07 | 10.17 |
| #FFFFFF | 10.17 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.07 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.17 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0048BF
Deuteranopia (green-blind)
#003AB8
Tritanopia (blue-blind)
#005170
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #351fbb; /* rgb */ color: rgb(53, 31, 187); /* oklch */ color: oklch(40.1% 0.222 275.9);
Tailwind
colors: {
custom: {
50: '#8261d1',
500: '#351fbb',
950: '#000000',
},
}SCSS
$custom: #351fbb; $custom-light: #8261d1; $custom-dark: #000000;
JSON
{
"hex": "#351fbb",
"rgb": {
"r": 53,
"g": 31,
"b": 187
},
"hsl": {
"h": 248.462,
"s": 71.56,
"l": 42.745
},
"oklch": {
"l": 0.40093,
"c": 0.22199,
"h": 275.9
},
"luminance": 0.05325
}Semantic roles & 50–950 ramp
primary
#351FBB
secondary
#BFCD69
accent
#EE3AD5
background
#F8F6FD
surface
#F0EBFA
border
#CBC6D3
text
#0C0514
muted
#7D7A83