#0A5121
Closest named color: Forest (#0B5509). oklch(38.2% 0.102 148.6), rgb(10, 81, 33).
Aa
White text reads best on this color (9.49:1).
About this color
#0A5121 is a dark, moderately saturated green. In OKLCH its lightness is 38%, its chroma 0.102 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.028 away. White text reads best on it, at 9.49:1.
| Hue family | Greens |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #0A5121 |
| RGB | rgb(10, 81, 33) |
| HSL | hsl(139, 78%, 18%) |
| OKLCH | oklch(38.2% 0.102 148.6) |
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 #0A5121 | 9.49:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #0A5121 | 2.21:1 | Fails | Lc 12.4 | Not readable |
| #0A5121 text on white | 9.49:1 | AAA | Lc 91.5 | Preferred for body text |
| #0A5121 text on black | 2.21:1 | Fails | Lc -10.8 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE2
oklch(93.5% 0.022 149.7)
-
Step 200
200
#C7E1CA
oklch(88.4% 0.042 148.5)
-
Step 300
300
#9FCFA5
oklch(80.9% 0.077 148.2)
-
Step 400
400
#66B675
oklch(70.8% 0.123 148.6)
-
Step 500
500
#30A250
oklch(63% 0.157 148.7)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900 (this color)
#0A5121
oklch(38.2% 0.102 148.6)
-
Step 950
950
#0A2F13
oklch(27.1% 0.065 148.2)
#0A5121 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) | #52491D | 0.082 |
| Deuteranopia (no green cones) | #4A4325 | 0.082 |
| Tritanopia (no blue cones) | #004F46 | 0.059 |
| Achromatopsia (no color) | #464646 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A5121
#0A5121
oklch(38.2% 0.102 148.6)
- #5F2C5E
#5F2C5E
oklch(38.2% 0.102 328.1)
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 #0A5121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.028
- Pine Green #0A481E ΔE 0.030
- Bottle Green #044A05 ΔE 0.032
- Darkgreen #054907 ΔE 0.033
- British Racing Green #05480D ΔE 0.033
- Deep Green #02590F ΔE 0.035
- Navy Green #35530A ΔE 0.039
- Evergreen #05472A ΔE 0.040
Use #0A5121 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.