#172D85#172D85
#172D85 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.149 H 266.9°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).
Color values
| HEX | #172D85 |
|---|---|
| RGB | rgb(23, 45, 133) |
| HSL | hsl(228, 71%, 31%) |
| HSV | hsv(228, 83%, 52%) |
| CMYK | cmyk(82.7%, 66.2%, 0%, 47.8%) |
| CIE-LAB | lab(22.83, 26.29, -51.50) |
| CIE-LCH | lch(22.83, 57.82, 297.05°) |
| OKLab | oklab(34.5% -0.0081 -0.1491) |
| OKLCH | oklch(34.5% 0.149 266.9) |
| XYZ | xyz(5.5239, 3.7517, 22.6188) |
| Luminance | 0.0375 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 6.05
Midnight Blue
#191970
ΔE00 6.22
Royal
#0C1793
ΔE00 6.53
Marine
#042E60
ΔE00 7.12
Darkslateblue
#483D8B
ΔE00 7.63
Blueberry
#464196
ΔE00 7.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#172D85 #856F17
analogous
#176485 #172D85 #381785
triadic
#172D85 #85172D #2D8517
tetradic
#172D85 #851764 #856F17 #178538
square
#172D85 #851764 #856F17 #178538
split-complementary
#172D85 #853817 #648517
monochromatic
#050A1D #0E1B51 #172D85 #203FB9 #3A5ADD
Accessibility & contrast
On white
12.00
#172D85 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.75
#172D85 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #172D85
12.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##172D85 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##172D85 | 1.00 | 12.00 | 1.75 | 12.00 |
| #FFFFFF | 12.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.75 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003C88
Deuteranopia (green-blind)
#003183
Tritanopia (blue-blind)
#004454
Achromatopsia (no color)
#363636
Design tokens & code
CSS
--color: #172d85; /* rgb */ color: rgb(23, 45, 133); /* oklch */ color: oklch(34.5% 0.149 266.9);
Tailwind
colors: {
custom: {
50: '#6965a9',
500: '#172d85',
950: '#000000',
},
}SCSS
$custom: #172d85; $custom-light: #6965a9; $custom-dark: #000000;
JSON
{
"hex": "#172d85",
"rgb": {
"r": 23,
"g": 45,
"b": 133
},
"hsl": {
"h": 228,
"s": 70.513,
"l": 30.588
},
"oklch": {
"l": 0.34497,
"c": 0.14929,
"h": 266.9
},
"luminance": 0.03752
}Semantic roles & 50–950 ramp
primary
#172D85
secondary
#B9A13F
accent
#CA3BED
background
#F6F6FA
surface
#ECEBF4
border
#C7C6CE
text
#070510
muted
#7A7A7F