#1B5923
Closest named color: Deep Green (#02590F). oklch(41.1% 0.106 145.5), rgb(27, 89, 35).
Aa
White text reads best on this color (8.40:1).
About this color
#1B5923 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.106 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.024 away. White text reads best on it, at 8.40:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.49:1 |
| White text | 8.40:1 |
Values
| HEX | #1B5923 |
| RGB | rgb(27, 89, 35) |
| HSL | hsl(128, 53%, 23%) |
| OKLCH | oklch(41.1% 0.106 145.5) |
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 #1B5923 | 8.40:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #1B5923 | 2.49:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #1B5923 text on white | 8.40:1 | AAA | Lc 88.6 | Fine for body text |
| #1B5923 text on black | 2.49:1 | Fails | Lc -13.6 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CCE0CC
oklch(88.6% 0.034 145.3)
-
Step 300
300
#A8CCA9
oklch(80.9% 0.062 145.7)
-
Step 400
400
#78B17A
oklch(70.6% 0.099 145.3)
-
Step 500
500
#529D58
oklch(63% 0.126 145.6)
-
Step 600
600
#33883D
oklch(55.7% 0.138 145.5)
-
Step 700
700
#24732F
oklch(49.1% 0.128 145.6)
-
Step 800
800 (this color)
#1B5923
oklch(41.1% 0.106 145.5)
-
Step 900
900
#214D25
oklch(37.8% 0.082 145.5)
-
Step 950
950
#142D16
oklch(27% 0.052 145.6)
#1B5923 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) | #5A511E | 0.079 |
| Deuteranopia (no green cones) | #534B27 | 0.081 |
| Tritanopia (no blue cones) | #0A574D | 0.064 |
| Achromatopsia (no color) | #4D4D4D | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5923
#1B5923
oklch(41.1% 0.106 145.5)
- #673369
#673369
oklch(41.1% 0.106 325.9)
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 #1B5923, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.024
- Spruce #0A5F38 ΔE 0.027
- Forest #0B5509 ΔE 0.028
- Navy Green #35530A ΔE 0.029
- Pine #2B5D34 ΔE 0.029
- Dark Green #006400 ΔE 0.050
- Army Green #4B5D16 ΔE 0.055
- Bottle Green #044A05 ΔE 0.056
Use #1B5923 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.