#291B9F#291B9F
#291B9F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.6% C 0.196 H 274.7°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).
Color values
| HEX | #291B9F |
|---|---|
| RGB | rgb(41, 27, 159) |
| HSL | hsl(246, 71%, 36%) |
| HSV | hsv(246, 83%, 62%) |
| CMYK | cmyk(74.2%, 83%, 0%, 37.6%) |
| CIE-LAB | lab(22.85, 47.58, -67.52) |
| CIE-LCH | lch(22.85, 82.60, 305.17°) |
| OKLab | oklab(35.61% 0.0159 -0.1952) |
| OKLCH | oklch(35.61% 0.196 274.7) |
| XYZ | xyz(7.5623, 3.7577, 33.1209) |
| Luminance | 0.0376 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal
#0C1793
ΔE00 2.83
Cobalt Blue
#030AA7
ΔE00 3.02
Indigo Blue
#3A18B1
ΔE00 3.13
Royal Blue (survey)
#0504AA
ΔE00 3.45
Ultramarine
#2000B1
ΔE00 3.59
True Blue
#010FCC
ΔE00 5.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#291B9F #919F1B
analogous
#1B4F9F #291B9F #6B1B9F
triadic
#291B9F #9F291B #1B9F29
tetradic
#291B9F #9F1B4F #919F1B #1B9F6B
square
#291B9F #9F1B4F #919F1B #1B9F6B
split-complementary
#291B9F #9F6B1B #4F9F1B
monochromatic
#0E0936 #1C126B #291B9F #3624D3 #6253E2
Accessibility & contrast
On white
11.99
#291B9F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.75
#291B9F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #291B9F
11.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##291B9F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##291B9F | 1.00 | 11.99 | 1.75 | 11.99 |
| #FFFFFF | 11.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.75 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003CA3
Deuteranopia (green-blind)
#00309D
Tritanopia (blue-blind)
#00455E
Achromatopsia (no color)
#373737
Design tokens & code
CSS
--color: #291b9f; /* rgb */ color: rgb(41, 27, 159); /* oklch */ color: oklch(35.6% 0.196 274.7);
Tailwind
colors: {
custom: {
50: '#775cbd',
500: '#291b9f',
950: '#000000',
},
}SCSS
$custom: #291b9f; $custom-light: #775cbd; $custom-dark: #000000;
JSON
{
"hex": "#291b9f",
"rgb": {
"r": 41,
"g": 27,
"b": 159
},
"hsl": {
"h": 246.364,
"s": 70.968,
"l": 36.471
},
"oklch": {
"l": 0.35612,
"c": 0.19587,
"h": 274.7
},
"luminance": 0.03758
}Semantic roles & 50–950 ramp
primary
#291B9F
secondary
#B8C551
accent
#EE3ADB
background
#F8F5FB
surface
#EFE9F7
border
#CAC5D0
text
#0A0412
muted
#7C7981