#173F42#173F42
#173F42 is a dark, muted teal. Relative luminance 0.041; OKLCH L 34.1% C 0.045 H 202.0°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).
Color values
| HEX | #173F42 |
|---|---|
| RGB | rgb(23, 63, 66) |
| HSL | hsl(184, 48%, 17%) |
| HSV | hsv(184, 65%, 26%) |
| CMYK | cmyk(65.2%, 4.5%, 0%, 74.1%) |
| CIE-LAB | lab(24.10, -12.85, -6.06) |
| CIE-LCH | lch(24.10, 14.20, 205.26°) |
| OKLab | oklab(34.08% -0.0414 -0.0168) |
| OKLCH | oklch(34.08% 0.045 202) |
| XYZ | xyz(3.1138, 4.1302, 5.7863) |
| Luminance | 0.0413 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Darkslategray
#2F4F4F
ΔE00 5.70
Dark Teal
#014D4E
ΔE00 6.03
Deep Teal
#00555A
ΔE00 7.91
Dark Blue Green
#005249
ΔE00 9.89
Gunmetal
#2A3439
ΔE00 10.04
Charcoal
#36454F
ΔE00 10.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#173F42 #421A17
analogous
#174230 #173F42 #172A42
triadic
#173F42 #42173F #3F4217
tetradic
#173F42 #301742 #421A17 #2A4217
square
#173F42 #301742 #421A17 #2A4217
split-complementary
#173F42 #42172A #423017
monochromatic
#081617 #081617 #173F42 #276A6F #37969D
Accessibility & contrast
On white
11.50
#173F42 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.83
#173F42 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #173F42
11.50:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##173F42 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##173F42 | 1.00 | 11.50 | 1.83 | 11.50 |
| #FFFFFF | 11.50 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.83 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.50 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3A3C42
Deuteranopia (green-blind)
#333742
Tritanopia (blue-blind)
#004140
Achromatopsia (no color)
#393939
Design tokens & code
CSS
--color: #173f42; /* rgb */ color: rgb(23, 63, 66); /* oklch */ color: oklch(34.1% 0.045 202.0);
Tailwind
colors: {
custom: {
50: '#5a7476',
500: '#173f42',
950: '#000000',
},
}SCSS
$custom: #173f42; $custom-light: #5a7476; $custom-dark: #000000;
JSON
{
"hex": "#173f42",
"rgb": {
"r": 23,
"g": 63,
"b": 66
},
"hsl": {
"h": 184.186,
"s": 48.315,
"l": 17.451
},
"oklch": {
"l": 0.34078,
"c": 0.04471,
"h": 202
},
"luminance": 0.04131
}Semantic roles & 50–950 ramp
primary
#173F42
secondary
#79403C
accent
#5950D8
background
#F5F7F7
surface
#E9EDED
border
#C5C8C8
text
#040808
muted
#797B7B