#175A48
Closest named color: Dark Blue Green (#005249). oklch(42.1% 0.073 171), rgb(23, 90, 72).
Aa
White text reads best on this color (8.10:1).
About this color
#175A48 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.073 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.031 away. White text reads best on it, at 8.10:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #175A48 |
| RGB | rgb(23, 90, 72) |
| HSL | hsl(164, 59%, 22%) |
| OKLCH | oklch(42.1% 0.073 171) |
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 #175A48 | 8.10:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #175A48 | 2.59:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #175A48 text on white | 8.10:1 | AAA | Lc 87.7 | Fine for body text |
| #175A48 text on black | 2.59:1 | Fails | Lc -14.4 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CBDED7
oklch(88.4% 0.022 171.7)
-
Step 300
300
#A6CABD
oklch(80.9% 0.043 171.3)
-
Step 400
400
#74AF9B
oklch(70.8% 0.068 171)
-
Step 500
500
#4C9B82
oklch(63.2% 0.088 170.4)
-
Step 600
600
#29856C
oklch(55.6% 0.094 171.1)
-
Step 700
700
#19715A
oklch(49.2% 0.088 170.7)
-
Step 800
800 (this color)
#175A48
oklch(42.1% 0.073 171)
-
Step 900
900
#1D4B3D
oklch(37.6% 0.056 170.5)
-
Step 950
950
#122C24
oklch(27% 0.036 171.2)
#175A48 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) | #575447 | 0.074 |
| Deuteranopia (no green cones) | #4E4D49 | 0.071 |
| Tritanopia (no blue cones) | #005B55 | 0.021 |
| Achromatopsia (no color) | #505050 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175A48
#175A48
oklch(42.1% 0.073 171)
- #6B3C52
#6B3C52
oklch(42.1% 0.072 351.1)
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 #175A48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.034
- Spruce #0A5F38 ΔE 0.035
- Pine #2B5D34 ΔE 0.036
- Deep Teal #00555A ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Teal #014D4E ΔE 0.051
- Petrol #005F6A ΔE 0.053
Use #175A48 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.