#1B5939
Closest named color: Spruce (#0A5F38). oklch(41.5% 0.083 156.9), rgb(27, 89, 57).
Aa
White text reads best on this color (8.28:1).
About this color
#1B5939 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.083 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.021 away. White text reads best on it, at 8.28:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #1B5939 |
| RGB | rgb(27, 89, 57) |
| HSL | hsl(149, 53%, 23%) |
| OKLCH | oklch(41.5% 0.083 156.9) |
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 #1B5939 | 8.28:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #1B5939 | 2.53:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #1B5939 text on white | 8.28:1 | AAA | Lc 88.3 | Fine for body text |
| #1B5939 text on black | 2.53:1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CBDFD2
oklch(88.5% 0.028 157.3)
-
Step 300
300
#A8CBB4
oklch(81% 0.049 156.3)
-
Step 400
400
#77B08D
oklch(70.8% 0.079 156.8)
-
Step 500
500
#519C71
oklch(63.2% 0.1 156.8)
-
Step 600
600
#318659
oklch(55.6% 0.108 156.8)
-
Step 700
700
#227149
oklch(49% 0.1 157.1)
-
Step 800
800 (this color)
#1B5939
oklch(41.5% 0.083 156.9)
-
Step 900
900
#204C33
oklch(37.8% 0.065 156.4)
-
Step 950
950
#142C1E
oklch(26.9% 0.04 156.7)
#1B5939 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) | #585237 | 0.075 |
| Deuteranopia (no green cones) | #504C3B | 0.074 |
| Tritanopia (no blue cones) | #005851 | 0.040 |
| Achromatopsia (no color) | #4E4E4E | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5939
#1B5939
oklch(41.5% 0.083 156.9)
- #68395C
#68395C
oklch(41.6% 0.083 337.2)
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 #1B5939, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.021
- Pine #2B5D34 ΔE 0.022
- Dark Blue Green #005249 ΔE 0.042
- Navy Green #35530A ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.050
- Deep Green #02590F ΔE 0.053
- Forest #0B5509 ΔE 0.055
- Deep Teal #00555A ΔE 0.060
Use #1B5939 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.