#1B5A28
Closest named color: Spruce (#0A5F38). oklch(41.5% 0.103 147.2), rgb(27, 90, 40).
Aa
White text reads best on this color (8.26:1).
About this color
#1B5A28 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.103 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.022 away. White text reads best on it, at 8.26:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.53:1 |
| White text | 8.26:1 |
Values
| HEX | #1B5A28 |
| RGB | rgb(27, 90, 40) |
| HSL | hsl(132, 54%, 23%) |
| OKLCH | oklch(41.5% 0.103 147.2) |
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 #1B5A28 | 8.26:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #1B5A28 | 2.53:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #1B5A28 text on white | 8.26:1 | AAA | Lc 88.2 | Fine for body text |
| #1B5A28 text on black | 2.53:1 | Fails | Lc -13.9 | 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
#CBE0CD
oklch(88.6% 0.034 148)
-
Step 300
300
#A8CCAB
oklch(81% 0.06 147.3)
-
Step 400
400
#77B17E
oklch(70.7% 0.095 147.5)
-
Step 500
500
#519D5C
oklch(63% 0.123 147.1)
-
Step 600
600
#318842
oklch(55.7% 0.134 147.2)
-
Step 700
700
#227334
oklch(49.2% 0.124 147.4)
-
Step 800
800 (this color)
#1B5A28
oklch(41.5% 0.103 147.2)
-
Step 900
900
#204D27
oklch(37.8% 0.081 147)
-
Step 950
950
#142D17
oklch(27% 0.051 146.6)
#1B5A28 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) | #5B5224 | 0.080 |
| Deuteranopia (no green cones) | #534C2C | 0.080 |
| Tritanopia (no blue cones) | #07584F | 0.061 |
| Achromatopsia (no color) | #4E4E4E | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5A28
#1B5A28
oklch(41.5% 0.103 147.2)
- #683568
#683568
oklch(41.5% 0.102 327.2)
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 #1B5A28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.022
- Pine #2B5D34 ΔE 0.024
- Deep Green #02590F ΔE 0.030
- Navy Green #35530A ΔE 0.032
- Forest #0B5509 ΔE 0.034
- Dark Green #006400 ΔE 0.052
- Army Green #4B5D16 ΔE 0.054
- Camouflage Green #4B6113 ΔE 0.060
Use #1B5A28 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.