#175644
Closest named color: Dark Blue Green (#005249). oklch(40.8% 0.07 170), rgb(23, 86, 68).
Aa
White text reads best on this color (8.56:1).
About this color
#175644 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.070 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.021 away. White text reads best on it, at 8.56:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #175644 |
| RGB | rgb(23, 86, 68) |
| HSL | hsl(163, 58%, 21%) |
| OKLCH | oklch(40.8% 0.07 170) |
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 #175644 | 8.56:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #175644 | 2.45:1 | Fails | Lc 14.8 | Not readable |
| #175644 text on white | 8.56:1 | AAA | Lc 89.2 | Fine for body text |
| #175644 text on black | 2.45:1 | Fails | Lc -13.0 | 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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CBDED7
oklch(88.4% 0.022 171.7)
-
Step 300
300
#A7CABC
oklch(80.9% 0.042 169)
-
Step 400
400
#77AE9A
oklch(70.7% 0.065 169.7)
-
Step 500
500
#509A82
oklch(63.1% 0.083 170.3)
-
Step 600
600
#2F846B
oklch(55.5% 0.091 170.2)
-
Step 700
700
#207059
oklch(49.1% 0.085 169.8)
-
Step 800
800 (this color)
#175644
oklch(40.8% 0.07 170)
-
Step 900
900
#1F4B3D
oklch(37.7% 0.055 169.9)
-
Step 950
950
#132C24
oklch(27% 0.035 170.7)
#175644 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) | #535043 | 0.071 |
| Deuteranopia (no green cones) | #4B4A45 | 0.068 |
| Tritanopia (no blue cones) | #005751 | 0.021 |
| Achromatopsia (no color) | #4C4C4C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175644
#175644
oklch(40.8% 0.07 170)
- #66394F
#66394F
oklch(40.7% 0.07 350)
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 #175644, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.021
- Deep Teal #00555A ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.040
- Spruce #0A5F38 ΔE 0.040
- Pine #2B5D34 ΔE 0.041
- Dark Teal #014D4E ΔE 0.041
- Dark Green Blue #1F6357 ΔE 0.047
- Evergreen #05472A ΔE 0.060
Use #175644 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.