#1B5A0A
Closest named color: Deep Green (#02590F). oklch(41.1% 0.126 140.3), rgb(27, 90, 10).
Aa
White text reads best on this color (8.35:1).
About this color
#1B5A0A is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.126 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.012 away. White text reads best on it, at 8.35:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.51:1 |
| White text | 8.35:1 |
Values
| HEX | #1B5A0A |
| RGB | rgb(27, 90, 10) |
| HSL | hsl(107, 80%, 20%) |
| OKLCH | oklch(41.1% 0.126 140.3) |
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 #1B5A0A | 8.35:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #1B5A0A | 2.51:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #1B5A0A text on white | 8.35:1 | AAA | Lc 88.4 | Fine for body text |
| #1B5A0A text on black | 2.51:1 | Fails | Lc -13.8 | 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 800.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EEE0
oklch(93.7% 0.022 139)
-
Step 200
200
#CBE0C7
oklch(88.4% 0.041 140.7)
-
Step 300
300
#A8CDA0
oklch(81% 0.074 140.1)
-
Step 400
400
#77B36B
oklch(70.8% 0.119 140.3)
-
Step 500
500
#529F42
oklch(63.2% 0.15 140.3)
-
Step 600
600
#32891D
oklch(55.6% 0.164 140.3)
-
Step 700
700
#24740D
oklch(49.1% 0.152 140.3)
-
Step 800
800 (this color)
#1B5A0A
oklch(41.1% 0.126 140.3)
-
Step 900
900
#204E17
oklch(37.8% 0.099 140.6)
-
Step 950
950
#142E0F
oklch(27.2% 0.062 140.5)
#1B5A0A 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) | #5D5100 | 0.085 |
| Deuteranopia (no green cones) | #554C14 | 0.084 |
| Tritanopia (no blue cones) | #10574C | 0.084 |
| Achromatopsia (no color) | #4E4E4E | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5A0A
#1B5A0A
oklch(41.1% 0.126 140.3)
- #682F74
#682F74
oklch(41.2% 0.126 320.4)
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 #1B5A0A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.012
- Forest #0B5509 ΔE 0.020
- Navy Green #35530A ΔE 0.031
- Dark Green #006400 ΔE 0.034
- Spruce #0A5F38 ΔE 0.045
- Pine #2B5D34 ΔE 0.047
- Bottle Green #044A05 ΔE 0.057
- Army Green #4B5D16 ΔE 0.058
Use #1B5A0A 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.