#17315B#17315B
#17315B is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.7% C 0.082 H 259.6°. Best body text is #FFFFFF at 12.91:1 contrast (WCAG AA passes).
Color values
| HEX | #17315B |
|---|---|
| RGB | rgb(23, 49, 91) |
| HSL | hsl(217, 60%, 22%) |
| HSV | hsv(217, 75%, 36%) |
| CMYK | cmyk(74.7%, 46.2%, 0%, 64.3%) |
| CIE-LAB | lab(20.57, 6.12, -28.15) |
| CIE-LCH | lch(20.57, 28.80, 282.27°) |
| OKLab | oklab(31.71% -0.0148 -0.0804) |
| OKLCH | oklch(31.71% 0.082 259.6) |
| XYZ | xyz(3.3393, 3.1338, 10.3244) |
| Luminance | 0.0313 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine
#042E60
ΔE00 2.09
Navy Blue
#1B2A4A
ΔE00 3.89
Marine Blue
#01386A
ΔE00 4.11
Twilight Blue
#0A437A
ΔE00 7.28
Darkish Blue
#014182
ΔE00 7.33
Prussian Blue
#004577
ΔE00 8.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#17315B #5B4117
analogous
#17535B #17315B #1F175B
triadic
#17315B #5B1731 #315B17
tetradic
#17315B #5B1753 #5B4117 #175B1F
square
#17315B #5B1753 #5B4117 #175B1F
split-complementary
#17315B #5B1F17 #535B17
monochromatic
#060D18 #0B172A #17315B #234B8C #3066BD
Accessibility & contrast
On white
12.91
#17315B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.63
#17315B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #17315B
12.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##17315B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##17315B | 1.00 | 12.91 | 1.63 | 12.91 |
| #FFFFFF | 12.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1D355D
Deuteranopia (green-blind)
#112F5A
Tritanopia (blue-blind)
#003B41
Achromatopsia (no color)
#323232
Design tokens & code
CSS
--color: #17315b; /* rgb */ color: rgb(23, 49, 91); /* oklch */ color: oklch(31.7% 0.082 259.6);
Tailwind
colors: {
custom: {
50: '#5e688a',
500: '#17315b',
950: '#000000',
},
}SCSS
$custom: #17315b; $custom-light: #5e688a; $custom-dark: #000000;
JSON
{
"hex": "#17315b",
"rgb": {
"r": 23,
"g": 49,
"b": 91
},
"hsl": {
"h": 217.059,
"s": 59.649,
"l": 22.353
},
"oklch": {
"l": 0.31713,
"c": 0.08176,
"h": 259.6
},
"luminance": 0.03134
}Semantic roles & 50–950 ramp
primary
#17315B
secondary
#92713C
accent
#A645E3
background
#F5F6F8
surface
#E9EBF0
border
#C5C6CB
text
#05060B
muted
#797A7C