#175A41
Closest named color: Spruce (#0A5F38). oklch(41.9% 0.079 163.9), rgb(23, 90, 65).
Aa
White text reads best on this color (8.15:1).
About this color
#175A41 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.079 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.025 away. White text reads best on it, at 8.15:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #175A41 |
| RGB | rgb(23, 90, 65) |
| HSL | hsl(158, 59%, 22%) |
| OKLCH | oklch(41.9% 0.079 163.9) |
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 #175A41 | 8.15:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #175A41 | 2.57:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #175A41 text on white | 8.15:1 | AAA | Lc 87.9 | Fine for body text |
| #175A41 text on black | 2.57:1 | Fails | Lc -14.2 | 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
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#CBDFD5
oklch(88.6% 0.025 164.4)
-
Step 300
300
#A6CAB9
oklch(80.8% 0.045 165)
-
Step 400
400
#75AF94
oklch(70.6% 0.073 163.7)
-
Step 500
500
#4D9B7A
oklch(63% 0.093 164)
-
Step 600
600
#2A8663
oklch(55.7% 0.102 163.8)
-
Step 700
700
#1B7152
oklch(49% 0.094 164.1)
-
Step 800
800 (this color)
#175A41
oklch(41.9% 0.079 163.9)
-
Step 900
900
#1D4C39
oklch(37.8% 0.061 164.1)
-
Step 950
950
#122C21
oklch(26.8% 0.039 164.2)
#175A41 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) | #585340 | 0.077 |
| Deuteranopia (no green cones) | #4F4D43 | 0.073 |
| Tritanopia (no blue cones) | #005A53 | 0.029 |
| Achromatopsia (no color) | #4F4F4F | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175A41
#175A41
oklch(41.9% 0.079 163.9)
- #6A3A57
#6A3A57
oklch(41.8% 0.079 344)
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 #175A41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.025
- Pine #2B5D34 ΔE 0.027
- Dark Blue Green #005249 ΔE 0.036
- Dark Green Blue #1F6357 ΔE 0.041
- Deep Teal #00555A ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dark Teal #014D4E ΔE 0.057
- Navy Green #35530A ΔE 0.059
Use #175A41 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.