#1B582C
Closest named color: Spruce (#0A5F38). oklch(40.9% 0.095 149.3), rgb(27, 88, 44).
Aa
White text reads best on this color (8.47:1).
About this color
#1B582C is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.095 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.023 away. White text reads best on it, at 8.47:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #1B582C |
| RGB | rgb(27, 88, 44) |
| HSL | hsl(137, 53%, 23%) |
| OKLCH | oklch(40.9% 0.095 149.3) |
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 #1B582C | 8.47:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #1B582C | 2.47:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #1B582C text on white | 8.47:1 | AAA | Lc 88.9 | Fine for body text |
| #1B582C text on black | 2.47:1 | Fails | Lc -13.3 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CCDFCE
oklch(88.5% 0.031 148.4)
-
Step 300
300
#A8CBAE
oklch(80.9% 0.055 150)
-
Step 400
400
#78B082
oklch(70.6% 0.089 149.3)
-
Step 500
500
#539C63
oklch(63% 0.113 149.3)
-
Step 600
600
#338749
oklch(55.6% 0.125 149.2)
-
Step 700
700
#25723A
oklch(49.1% 0.115 149.1)
-
Step 800
800 (this color)
#1B582C
oklch(40.9% 0.095 149.3)
-
Step 900
900
#214C2B
oklch(37.6% 0.074 149.3)
-
Step 950
950
#142D1A
oklch(27.1% 0.047 150)
#1B582C 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) | #595029 | 0.079 |
| Deuteranopia (no green cones) | #514B2F | 0.076 |
| Tritanopia (no blue cones) | #06564D | 0.053 |
| Achromatopsia (no color) | #4D4D4D | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B582C
#1B582C
oklch(40.9% 0.095 149.3)
- #663563
#663563
oklch(40.9% 0.096 329.4)
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 #1B582C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.023
- Pine #2B5D34 ΔE 0.024
- Navy Green #35530A ΔE 0.034
- Deep Green #02590F ΔE 0.036
- Forest #0B5509 ΔE 0.037
- Dark Blue Green #005249 ΔE 0.055
- Pine Green #0A481E ΔE 0.056
- Army Green #4B5D16 ΔE 0.059
Use #1B582C 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.