#170C50#170C50
#170C50 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 23.0% C 0.115 H 279.7°. Best body text is #FFFFFF at 17.43:1 contrast (WCAG AA passes).
Color values
| HEX | #170C50 |
|---|---|
| RGB | rgb(23, 12, 80) |
| HSL | hsl(250, 74%, 18%) |
| HSV | hsv(250, 85%, 31%) |
| CMYK | cmyk(71.2%, 85%, 0%, 68.6%) |
| CIE-LAB | lab(9.19, 27.88, -39.22) |
| CIE-LCH | lch(9.19, 48.12, 305.41°) |
| OKLab | oklab(22.95% 0.0193 -0.1132) |
| OKLCH | oklch(22.95% 0.115 279.7) |
| XYZ | xyz(1.9323, 1.0241, 7.6837) |
| Luminance | 0.0102 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Indigo
#1F0954
ΔE00 1.77
Night Blue
#040348
ΔE00 2.69
Dark Blue
#00035B
ΔE00 3.89
Darkblue (survey)
#030764
ΔE00 4.43
Navy Blue (survey)
#001146
ΔE00 4.79
Midnight Blue
#191970
ΔE00 5.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#170C50 #45500C
analogous
#0C2350 #170C50 #390C50
triadic
#170C50 #50170C #0C5017
tetradic
#170C50 #500C23 #45500C #0C5039
square
#170C50 #500C23 #45500C #0C5039
split-complementary
#170C50 #50390C #23500C
monochromatic
#08041B #08041B #170C50 #261485 #361CBA
Accessibility & contrast
On white
17.43
#170C50 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.20
#170C50 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #170C50
17.43:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##170C50 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##170C50 | 1.00 | 17.43 | 1.20 | 17.43 |
| #FFFFFF | 17.43 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.20 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.43 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001C52
Deuteranopia (green-blind)
#00174F
Tritanopia (blue-blind)
#00202E
Achromatopsia (no color)
#1A1A1A
Design tokens & code
CSS
--color: #170c50; /* rgb */ color: rgb(23, 12, 80); /* oklch */ color: oklch(23.0% 0.115 279.7);
Tailwind
colors: {
custom: {
50: '#5e4d82',
500: '#170c50',
950: '#000000',
},
}SCSS
$custom: #170c50; $custom-light: #5e4d82; $custom-dark: #000000;
JSON
{
"hex": "#170c50",
"rgb": {
"r": 23,
"g": 12,
"b": 80
},
"hsl": {
"h": 249.706,
"s": 73.913,
"l": 18.039
},
"oklch": {
"l": 0.22954,
"c": 0.11485,
"h": 279.7
},
"luminance": 0.01024
}Semantic roles & 50–950 ramp
primary
#170C50
secondary
#7C8B2C
accent
#F137D3
background
#F5F4F8
surface
#EAE7EF
border
#C6C3CA
text
#05010A
muted
#79777C