#17405B#17405B
#17405B is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.6% C 0.065 H 241.0°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).
Color values
| HEX | #17405B |
|---|---|
| RGB | rgb(23, 64, 91) |
| HSL | hsl(204, 60%, 22%) |
| HSV | hsv(204, 75%, 36%) |
| CMYK | cmyk(74.7%, 29.7%, 0%, 64.3%) |
| CIE-LAB | lab(25.57, -4.21, -20.24) |
| CIE-LCH | lch(25.57, 20.67, 258.24°) |
| OKLab | oklab(35.63% -0.0317 -0.0571) |
| OKLCH | oklch(35.63% 0.065 241) |
| XYZ | xyz(4.0743, 4.6038, 10.5694) |
| Luminance | 0.0460 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 2.34
Dark Grey Blue
#29465B
ΔE00 3.15
Dark Blue Grey
#1F3B4D
ΔE00 3.64
Prussian Blue
#004577
ΔE00 5.31
Twilight Blue
#0A437A
ΔE00 5.96
Marine Blue
#01386A
ΔE00 6.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#17405B #5B3217
analogous
#175B54 #17405B #171E5B
triadic
#17405B #5B1740 #405B17
tetradic
#17405B #54175B #5B3217 #1E5B17
square
#17405B #54175B #5B3217 #1E5B17
split-complementary
#17405B #5B171E #5B5417
monochromatic
#061118 #0B1E2A #17405B #23628C #3085BD
Accessibility & contrast
On white
10.93
#17405B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.92
#17405B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #17405B
10.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##17405B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##17405B | 1.00 | 10.93 | 1.92 | 10.93 |
| #FFFFFF | 10.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#34405C
Deuteranopia (green-blind)
#2A3A5B
Tritanopia (blue-blind)
#004749
Achromatopsia (no color)
#3D3D3D
Design tokens & code
CSS
--color: #17405b; /* rgb */ color: rgb(23, 64, 91); /* oklch */ color: oklch(35.6% 0.065 241.0);
Tailwind
colors: {
custom: {
50: '#5e7489',
500: '#17405b',
950: '#000000',
},
}SCSS
$custom: #17405b; $custom-light: #5e7489; $custom-dark: #000000;
JSON
{
"hex": "#17405b",
"rgb": {
"r": 23,
"g": 64,
"b": 91
},
"hsl": {
"h": 203.824,
"s": 59.649,
"l": 22.353
},
"oklch": {
"l": 0.35631,
"c": 0.06527,
"h": 241
},
"luminance": 0.04604
}Semantic roles & 50–950 ramp
primary
#17405B
secondary
#925E3C
accent
#8445E3
background
#F5F7F8
surface
#E9EDF0
border
#C5C8CB
text
#05080B
muted
#797B7C