#17104C#17104C
#17104C is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.1% C 0.105 H 279.6°. Best body text is #FFFFFF at 17.28:1 contrast (WCAG AA passes).
Color values
| HEX | #17104C |
|---|---|
| RGB | rgb(23, 16, 76) |
| HSL | hsl(247, 65%, 18%) |
| HSV | hsv(247, 79%, 30%) |
| CMYK | cmyk(69.7%, 78.9%, 0%, 70.2%) |
| CIE-LAB | lab(9.60, 23.99, -35.78) |
| CIE-LCH | lch(9.60, 43.08, 303.84°) |
| OKLab | oklab(23.1% 0.0175 -0.1032) |
| OKLCH | oklch(23.1% 0.105 279.6) |
| XYZ | xyz(1.8427, 1.0744, 6.9463) |
| Luminance | 0.0107 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Indigo
#1F0954
ΔE00 3.22
Night Blue
#040348
ΔE00 3.35
Navy Blue (survey)
#001146
ΔE00 3.68
Dark Blue
#00035B
ΔE00 5.37
Midnight Blue (survey)
#020035
ΔE00 5.44
Darkblue (survey)
#030764
ΔE00 5.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#17104C #454C10
analogous
#10274C #17104C #35104C
triadic
#17104C #4C1710 #104C17
tetradic
#17104C #4C1027 #454C10 #104C35
square
#17104C #4C1027 #454C10 #104C35
split-complementary
#17104C #4C3510 #274C10
monochromatic
#080519 #080519 #17104C #261B7F #3625B1
Accessibility & contrast
On white
17.28
#17104C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.21
#17104C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #17104C
17.28:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##17104C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##17104C | 1.00 | 17.28 | 1.21 | 17.28 |
| #FFFFFF | 17.28 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.28 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001D4E
Deuteranopia (green-blind)
#00184B
Tritanopia (blue-blind)
#00202C
Achromatopsia (no color)
#1B1B1B
Design tokens & code
CSS
--color: #17104c; /* rgb */ color: rgb(23, 16, 76); /* oklch */ color: oklch(23.1% 0.105 279.6);
Tailwind
colors: {
custom: {
50: '#5c4f7f',
500: '#17104c',
950: '#000000',
},
}SCSS
$custom: #17104c; $custom-light: #5c4f7f; $custom-dark: #000000;
JSON
{
"hex": "#17104c",
"rgb": {
"r": 23,
"g": 16,
"b": 76
},
"hsl": {
"h": 247,
"s": 65.217,
"l": 18.039
},
"oklch": {
"l": 0.23101,
"c": 0.10471,
"h": 279.6
},
"luminance": 0.01075
}Semantic roles & 50–950 ramp
primary
#17104C
secondary
#7C8632
accent
#E840D5
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#05020A
muted
#79787C