#171859#171859
#171859 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.113 H 274.5°. Best body text is #FFFFFF at 16.01:1 contrast (WCAG AA passes).
Color values
| HEX | #171859 |
|---|---|
| RGB | rgb(23, 24, 89) |
| HSL | hsl(239, 59%, 22%) |
| HSV | hsv(239, 74%, 35%) |
| CMYK | cmyk(74.2%, 73%, 0%, 65.1%) |
| CIE-LAB | lab(12.96, 23.51, -39.14) |
| CIE-LCH | lch(12.96, 45.66, 301.00°) |
| OKLab | oklab(25.94% 0.0088 -0.1131) |
| OKLCH | oklch(25.94% 0.113 274.5) |
| XYZ | xyz(2.4826, 1.5565, 9.6189) |
| Luminance | 0.0156 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 4.14
Midnight Blue
#191970
ΔE00 4.18
Dark Indigo
#1F0954
ΔE00 4.59
Night Blue
#040348
ΔE00 5.24
Darkblue (survey)
#030764
ΔE00 5.37
Dark Blue
#00035B
ΔE00 5.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#171859 #595817
analogous
#173959 #171859 #371759
triadic
#171859 #591718 #185917
tetradic
#171859 #591739 #595817 #175937
square
#171859 #591739 #595817 #175937
split-complementary
#171859 #593717 #395917
monochromatic
#060718 #0A0B28 #171859 #24258A #3032BA
Accessibility & contrast
On white
16.01
#171859 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.31
#171859 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #171859
16.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##171859 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##171859 | 1.00 | 16.01 | 1.31 | 16.01 |
| #FFFFFF | 16.01 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.01 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00255B
Deuteranopia (green-blind)
#001E58
Tritanopia (blue-blind)
#002936
Achromatopsia (no color)
#212121
Design tokens & code
CSS
--color: #171859; /* rgb */ color: rgb(23, 24, 89); /* oklch */ color: oklch(25.9% 0.113 274.5);
Tailwind
colors: {
custom: {
50: '#5f5589',
500: '#171859',
950: '#000000',
},
}SCSS
$custom: #171859; $custom-light: #5f5589; $custom-dark: #000000;
JSON
{
"hex": "#171859",
"rgb": {
"r": 23,
"g": 24,
"b": 89
},
"hsl": {
"h": 239.091,
"s": 58.929,
"l": 21.961
},
"oklch": {
"l": 0.25943,
"c": 0.1134,
"h": 274.5
},
"luminance": 0.01557
}Semantic roles & 50–950 ramp
primary
#171859
secondary
#908F3C
accent
#E046E2
background
#F5F4F8
surface
#EAE8F0
border
#C6C4CB
text
#05030B
muted
#79787C