#175740
Closest named color: Dark Blue Green (#005249). oklch(41% 0.075 164.9), rgb(23, 87, 64).
Aa
White text reads best on this color (8.48:1).
About this color
#175740 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.075 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.028 away. White text reads best on it, at 8.48:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #175740 |
| RGB | rgb(23, 87, 64) |
| HSL | hsl(158, 58%, 22%) |
| OKLCH | oklch(41% 0.075 164.9) |
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 #175740 | 8.48:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #175740 | 2.47:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #175740 text on white | 8.48:1 | AAA | Lc 88.9 | Fine for body text |
| #175740 text on black | 2.47:1 | Fails | Lc -13.3 | 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 800.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CBDFD5
oklch(88.6% 0.025 164.4)
-
Step 300
300
#A7CABA
oklch(80.9% 0.044 165.9)
-
Step 400
400
#76AF96
oklch(70.7% 0.07 165.3)
-
Step 500
500
#4F9B7C
oklch(63.2% 0.09 165)
-
Step 600
600
#2E8565
oklch(55.6% 0.097 165.1)
-
Step 700
700
#1F7154
oklch(49.2% 0.091 165.1)
-
Step 800
800 (this color)
#175740
oklch(41% 0.075 164.9)
-
Step 900
900
#1F4B3A
oklch(37.6% 0.057 165.6)
-
Step 950
950
#132C22
oklch(26.9% 0.037 165.7)
#175740 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) | #55503F | 0.074 |
| Deuteranopia (no green cones) | #4D4A41 | 0.072 |
| Tritanopia (no blue cones) | #005751 | 0.028 |
| Achromatopsia (no color) | #4D4D4D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175740
#175740
oklch(41% 0.075 164.9)
- #673954
#673954
oklch(41.1% 0.075 344.8)
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 #175740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.028
- Spruce #0A5F38 ΔE 0.033
- Pine #2B5D34 ΔE 0.034
- Deep Teal #00555A ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dark Green Blue #1F6357 ΔE 0.048
- Dark Teal #014D4E ΔE 0.049
- Navy Green #35530A ΔE 0.059
Use #175740 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.