#321CB3#321CB3
#321CB3 is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.7% C 0.216 H 275.9°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).
Color values
| HEX | #321CB3 |
|---|---|
| RGB | rgb(50, 28, 179) |
| HSL | hsl(249, 73%, 41%) |
| HSV | hsv(249, 84%, 70%) |
| CMYK | cmyk(72.1%, 84.4%, 0%, 29.8%) |
| CIE-LAB | lab(26.05, 53.74, -74.28) |
| CIE-LCH | lch(26.05, 91.68, 305.88°) |
| OKLab | oklab(38.67% 0.0222 -0.2147) |
| OKLCH | oklch(38.67% 0.216 275.9) |
| XYZ | xyz(9.8647, 4.7623, 43.0384) |
| Luminance | 0.0476 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 1.03
True Blue
#010FCC
ΔE00 3.38
Ultramarine
#2000B1
ΔE00 3.50
Mediumblue
#0000CD
ΔE00 3.90
Cobalt Blue
#030AA7
ΔE00 4.28
Royal Blue (survey)
#0504AA
ΔE00 4.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#321CB3 #9DB31C
analogous
#1C51B3 #321CB3 #7E1CB3
triadic
#321CB3 #B3321C #1CB332
tetradic
#321CB3 #B31C51 #9DB31C #1CB37E
square
#321CB3 #B31C51 #9DB31C #1CB37E
split-complementary
#321CB3 #B37E1C #51B31C
monochromatic
#140B49 #23147E #321CB3 #482EDE #7663E7
Accessibility & contrast
On white
10.75
#321CB3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.95
#321CB3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #321CB3
10.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##321CB3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##321CB3 | 1.00 | 10.75 | 1.95 | 10.75 |
| #FFFFFF | 10.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.95 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0044B7
Deuteranopia (green-blind)
#0037B0
Tritanopia (blue-blind)
#004D6A
Achromatopsia (no color)
#3E3E3E
Design tokens & code
CSS
--color: #321cb3; /* rgb */ color: rgb(50, 28, 179); /* oklch */ color: oklch(38.7% 0.216 275.9);
Tailwind
colors: {
custom: {
50: '#7f5fcb',
500: '#321cb3',
950: '#000000',
},
}SCSS
$custom: #321cb3; $custom-light: #7f5fcb; $custom-dark: #000000;
JSON
{
"hex": "#321cb3",
"rgb": {
"r": 50,
"g": 28,
"b": 179
},
"hsl": {
"h": 248.742,
"s": 72.947,
"l": 40.588
},
"oklch": {
"l": 0.3867,
"c": 0.21582,
"h": 275.9
},
"luminance": 0.04763
}Semantic roles & 50–950 ramp
primary
#321CB3
secondary
#BCCB5F
accent
#F038D5
background
#F8F5FC
surface
#F0EAF9
border
#CBC6D2
text
#0C0514
muted
#7D7982