#17353F
Closest named color: Gunmetal (#293241). oklch(31.1% 0.04 222.2), rgb(23, 53, 63).
Aa
White text reads best on this color (12.98:1).
About this color
#17353F is a dark, muted teal or cyan. In OKLCH its lightness is 31%, its chroma 0.040 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.025 away. White text reads best on it, at 12.98:1.
| Hue family | Teals and cyans |
| Lightness | dark (31%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.61:1 |
| White text | 12.98:1 |
Values
| HEX | #17353F |
| RGB | rgb(23, 53, 63) |
| HSL | hsl(195, 47%, 17%) |
| OKLCH | oklch(31.1% 0.04 222.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #17353F | 12.98:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #17353F | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #17353F text on white | 12.98:1 | AAA | Lc 99.1 | Preferred for body text |
| #17353F text on black | 1.61:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DDE6
oklch(88.4% 0.027 224.3)
-
Step 300
300
#A0C8D7
oklch(80.9% 0.047 222.7)
-
Step 400
400
#69ACC3
oklch(70.8% 0.076 222)
-
Step 500
500
#3896B3
oklch(63% 0.097 222.1)
-
Step 600
600
#00809E
oklch(55.6% 0.103 221.9)
-
Step 700
700
#006C86
oklch(49.3% 0.091 222.1)
-
Step 800
800
#00586E
oklch(42.7% 0.079 222.3)
-
Step 900
900
#0F495A
oklch(37.8% 0.063 222.4)
-
Step 950
950 (this color)
#17353F
oklch(31.1% 0.04 222.2)
#17353F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2F3440 | 0.032 |
| Deuteranopia (no green cones) | #292F3F | 0.029 |
| Tritanopia (no blue cones) | #003838 | 0.025 |
| Achromatopsia (no color) | #313131 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17353F
#17353F
oklch(31.1% 0.04 222.2)
- #422A20
#422A20
oklch(31.2% 0.04 43.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #17353F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.025
- Midnight Green #073B4C ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.038
- Onyx #343A40 ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.050
- Dark #1B2431 ΔE 0.058
Use #17353F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.