#17531B
Closest named color: Forest (#0B5509). oklch(39% 0.107 144.2), rgb(23, 83, 27).
Aa
White text reads best on this color (9.17:1).
About this color
#17531B is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.019 away. White text reads best on it, at 9.17:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.28:1 |
| White text | 9.17:1 |
Values
| HEX | #17531B |
| RGB | rgb(23, 83, 27) |
| HSL | hsl(124, 57%, 21%) |
| OKLCH | oklch(39% 0.107 144.2) |
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 #17531B | 9.17:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #17531B | 2.28:1 | Fails | Lc 13.2 | Not readable |
| #17531B text on white | 9.17:1 | AAA | Lc 90.8 | Preferred for body text |
| #17531B text on black | 2.28:1 | Fails | Lc -11.5 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C8E1C7
oklch(88.4% 0.044 144.2)
-
Step 300
300
#A1CFA0
oklch(80.9% 0.081 144.3)
-
Step 400
400
#6CB56C
oklch(70.7% 0.127 144.1)
-
Step 500
500
#3DA242
oklch(63.2% 0.164 144.1)
-
Step 600
600
#058C1E
oklch(55.6% 0.178 144.2)
-
Step 700
700
#007616
oklch(49.1% 0.159 144.1)
-
Step 800
800
#026111
oklch(42.8% 0.137 144.1)
-
Step 900
900 (this color)
#17531B
oklch(39% 0.107 144.2)
-
Step 950
950
#0D2F0F
oklch(27.1% 0.068 144.4)
#17531B 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) | #554B15 | 0.079 |
| Deuteranopia (no green cones) | #4D4620 | 0.078 |
| Tritanopia (no blue cones) | #075147 | 0.066 |
| Achromatopsia (no color) | #484848 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17531B
#17531B
oklch(39% 0.107 144.2)
- #602E65
#602E65
oklch(39.1% 0.107 323.9)
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 #17531B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.019
- Deep Green #02590F ΔE 0.026
- Navy Green #35530A ΔE 0.029
- Bottle Green #044A05 ΔE 0.036
- Darkgreen #054907 ΔE 0.038
- British Racing Green #05480D ΔE 0.040
- Pine Green #0A481E ΔE 0.040
- Spruce #0A5F38 ΔE 0.045
Use #17531B 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.