#291B8D#291B8D
#291B8D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.174 H 276.9°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).
Color values
| HEX | #291B8D |
|---|---|
| RGB | rgb(41, 27, 141) |
| HSL | hsl(247, 68%, 33%) |
| HSV | hsv(247, 81%, 55%) |
| CMYK | cmyk(70.9%, 80.9%, 0%, 44.7%) |
| CIE-LAB | lab(20.74, 41.95, -59.91) |
| CIE-LCH | lch(20.74, 73.13, 305.00°) |
| OKLab | oklab(33.53% 0.0209 -0.1731) |
| OKLCH | oklch(33.53% 0.174 276.9) |
| XYZ | xyz(6.1125, 3.1778, 25.4854) |
| Luminance | 0.0318 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal
#0C1793
ΔE00 2.27
Cobalt Blue
#030AA7
ΔE00 4.42
Indigo (survey)
#380282
ΔE00 4.61
Darkblue
#00008B
ΔE00 4.82
Midnight Blue
#191970
ΔE00 4.86
Royal Blue (survey)
#0504AA
ΔE00 4.92
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#291B8D #7F8D1B
analogous
#1B468D #291B8D #621B8D
triadic
#291B8D #8D291B #1B8D29
tetradic
#291B8D #8D1B46 #7F8D1B #1B8D62
square
#291B8D #8D1B46 #7F8D1B #1B8D62
split-complementary
#291B8D #8D621B #468D1B
monochromatic
#0B0726 #1A115A #291B8D #3825C0 #5947DC
Accessibility & contrast
On white
12.84
#291B8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.64
#291B8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #291B8D
12.84:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##291B8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##291B8D | 1.00 | 12.84 | 1.64 | 12.84 |
| #FFFFFF | 12.84 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.64 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.84 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003790
Deuteranopia (green-blind)
#002D8B
Tritanopia (blue-blind)
#003E54
Achromatopsia (no color)
#323232
Design tokens & code
CSS
--color: #291b8d; /* rgb */ color: rgb(41, 27, 141); /* oklch */ color: oklch(33.5% 0.174 276.9);
Tailwind
colors: {
custom: {
50: '#735bb0',
500: '#291b8d',
950: '#000000',
},
}SCSS
$custom: #291b8d; $custom-light: #735bb0; $custom-dark: #000000;
JSON
{
"hex": "#291b8d",
"rgb": {
"r": 41,
"g": 27,
"b": 141
},
"hsl": {
"h": 247.368,
"s": 67.857,
"l": 32.941
},
"oklch": {
"l": 0.33532,
"c": 0.17439,
"h": 276.9
},
"luminance": 0.03178
}Semantic roles & 50–950 ramp
primary
#291B8D
secondary
#AFBD46
accent
#EB3DD5
background
#F7F5FB
surface
#EEE9F6
border
#C9C5D0
text
#090411
muted
#7B7980