#17423F
Closest named color: Dark Teal (#014D4E). oklch(34.8% 0.047 188.9), rgb(23, 66, 63).
Aa
White text reads best on this color (11.12:1).
About this color
#17423F is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.047 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.038 away. White text reads best on it, at 11.12:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 1.88:1 |
| White text | 11.12:1 |
Values
| HEX | #17423F |
| RGB | rgb(23, 66, 63) |
| HSL | hsl(176, 48%, 17%) |
| OKLCH | oklch(34.8% 0.047 188.9) |
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 #17423F | 11.12:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #17423F | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #17423F text on white | 11.12:1 | AAA | Lc 95.5 | Preferred for body text |
| #17423F text on black | 1.88:1 | 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 900.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CBDEDC
oklch(88.6% 0.02 189.2)
-
Step 300
300
#A7C8C5
oklch(80.8% 0.036 189.7)
-
Step 400
400
#77ACA8
oklch(70.6% 0.056 190)
-
Step 500
500
#509892
oklch(63.1% 0.073 188.4)
-
Step 600
600
#30827D
oklch(55.6% 0.079 189.5)
-
Step 700
700
#216E69
oklch(49.1% 0.074 188.8)
-
Step 800
800
#1E5A56
oklch(42.8% 0.061 188.9)
-
Step 900
900 (this color)
#17423F
oklch(34.8% 0.047 188.9)
-
Step 950
950
#142B29
oklch(26.9% 0.029 188.3)
#17423F 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) | #3E3E3F | 0.050 |
| Deuteranopia (no green cones) | #37393F | 0.047 |
| Tritanopia (no blue cones) | #004441 | 0.013 |
| Achromatopsia (no color) | #3B3B3B | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17423F
#17423F
oklch(34.8% 0.047 188.9)
- #502F35
#502F35
oklch(34.8% 0.049 8.1)
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 #17423F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.038
- Charcoal #264653 ΔE 0.040
- Midnight Green #073B4C ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.041
- Onyx #343A40 ΔE 0.042
- Evergreen #05472A ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.047
- Dark Blue Green #005249 ΔE 0.051
Use #17423F 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.