#291BC9#291BC9
#291BC9 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.6% C 0.243 H 271.1°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).
Color values
| HEX | #291BC9 |
|---|---|
| RGB | rgb(41, 27, 201) |
| HSL | hsl(245, 76%, 45%) |
| HSV | hsv(245, 87%, 79%) |
| CMYK | cmyk(79.6%, 86.6%, 0%, 21.2%) |
| CIE-LAB | lab(28.04, 59.94, -84.01) |
| CIE-LCH | lch(28.04, 103.20, 305.51°) |
| OKLab | oklab(40.65% 0.0046 -0.243) |
| OKLCH | oklch(40.65% 0.243 271.1) |
| XYZ | xyz(11.8454, 5.4710, 55.6787) |
| Luminance | 0.0547 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
True Blue
#010FCC
ΔE00 1.97
Ultramarine Blue
#1805DB
ΔE00 2.39
Mediumblue
#0000CD
ΔE00 2.87
Pure Blue
#0203E2
ΔE00 2.96
Indigo Blue
#3A18B1
ΔE00 3.20
Violet Blue
#510AC9
ΔE00 3.87
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#291BC9 #BBC91B
analogous
#1B64C9 #291BC9 #801BC9
triadic
#291BC9 #C9291B #1BC929
tetradic
#291BC9 #C91B64 #BBC91B #1BC980
square
#291BC9 #C91B64 #BBC91B #1BC980
split-complementary
#291BC9 #C9801B #64C91B
monochromatic
#130D5D #1E1493 #291BC9 #4A3CE5 #7C72EC
Accessibility & contrast
On white
10.03
#291BC9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.09
#291BC9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #291BC9
10.03:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##291BC9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##291BC9 | 1.00 | 10.03 | 2.09 | 10.03 |
| #FFFFFF | 10.03 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.09 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.03 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004ACD
Deuteranopia (green-blind)
#0039C6
Tritanopia (blue-blind)
#005777
Achromatopsia (no color)
#424242
Design tokens & code
CSS
--color: #291bc9; /* rgb */ color: rgb(41, 27, 201); /* oklch */ color: oklch(40.6% 0.243 271.1);
Tailwind
colors: {
custom: {
50: '#8160db',
500: '#291bc9',
950: '#000000',
},
}SCSS
$custom: #291bc9; $custom-light: #8160db; $custom-dark: #000000;
JSON
{
"hex": "#291bc9",
"rgb": {
"r": 41,
"g": 27,
"b": 201
},
"hsl": {
"h": 244.828,
"s": 76.316,
"l": 44.706
},
"oklch": {
"l": 0.40648,
"c": 0.243,
"h": 271.1
},
"luminance": 0.05472
}Semantic roles & 50–950 ramp
primary
#291BC9
secondary
#CBD36D
accent
#F335E4
background
#F9F5FD
surface
#F1EAFB
border
#CBC6D4
text
#0D0515
muted
#7E7983