#171166#171166
#171166 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.3% C 0.139 H 274.2°. Best body text is #FFFFFF at 16.05:1 contrast (WCAG AA passes).
Color values
| HEX | #171166 |
|---|---|
| RGB | rgb(23, 17, 102) |
| HSL | hsl(244, 71%, 23%) |
| HSV | hsv(244, 83%, 40%) |
| CMYK | cmyk(77.5%, 83.3%, 0%, 60%) |
| CIE-LAB | lab(12.87, 32.70, -47.96) |
| CIE-LCH | lch(12.87, 58.05, 304.29°) |
| OKLab | oklab(26.32% 0.0103 -0.1387) |
| OKLCH | oklch(26.32% 0.139 274.2) |
| XYZ | xyz(2.9513, 1.5421, 12.7099) |
| Luminance | 0.0154 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 2.32
Darkblue (survey)
#030764
ΔE00 2.40
Dark Royal Blue
#02066F
ΔE00 3.03
Dark Blue
#00035B
ΔE00 3.55
Dark Indigo
#1F0954
ΔE00 3.83
Deep Blue
#040273
ΔE00 3.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#171166 #606611
analogous
#113566 #171166 #411166
triadic
#171166 #661711 #116617
tetradic
#171166 #661135 #606611 #116641
square
#171166 #661135 #606611 #116641
split-complementary
#171166 #664111 #356611
monochromatic
#06041A #0B0832 #171166 #231A9A #2F22CF
Accessibility & contrast
On white
16.05
#171166 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.31
#171166 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #171166
16.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##171166 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##171166 | 1.00 | 16.05 | 1.31 | 16.05 |
| #FFFFFF | 16.05 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.05 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002568
Deuteranopia (green-blind)
#001D65
Tritanopia (blue-blind)
#002B3B
Achromatopsia (no color)
#212121
Design tokens & code
CSS
--color: #171166; /* rgb */ color: rgb(23, 17, 102); /* oklch */ color: oklch(26.3% 0.139 274.2);
Tailwind
colors: {
custom: {
50: '#635193',
500: '#171166',
950: '#000000',
},
}SCSS
$custom: #171166; $custom-light: #635193; $custom-dark: #000000;
JSON
{
"hex": "#171166",
"rgb": {
"r": 23,
"g": 17,
"b": 102
},
"hsl": {
"h": 244.235,
"s": 71.429,
"l": 23.333
},
"oklch": {
"l": 0.26322,
"c": 0.13911,
"h": 274.2
},
"luminance": 0.01542
}Semantic roles & 50–950 ramp
primary
#171166
secondary
#979E35
accent
#EE3AE1
background
#F6F4F9
surface
#EBE7F1
border
#C6C3CB
text
#06020D
muted
#7A787E