#1B5933
Closest named color: Spruce (#0A5F38). oklch(41.4% 0.089 152.9), rgb(27, 89, 51).
Aa
White text reads best on this color (8.32:1).
About this color
#1B5933 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.089 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.019 away. White text reads best on it, at 8.32:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #1B5933 |
| RGB | rgb(27, 89, 51) |
| HSL | hsl(143, 53%, 23%) |
| OKLCH | oklch(41.4% 0.089 152.9) |
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 #1B5933 | 8.32:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #1B5933 | 2.52:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #1B5933 text on white | 8.32:1 | AAA | Lc 88.4 | Fine for body text |
| #1B5933 text on black | 2.52:1 | Fails | Lc -13.7 | 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
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CBDFD0
oklch(88.5% 0.029 153.3)
-
Step 300
300
#A8CBB1
oklch(80.9% 0.052 153)
-
Step 400
400
#78B088
oklch(70.7% 0.083 152.9)
-
Step 500
500
#519C6A
oklch(63.1% 0.107 153)
-
Step 600
600
#318651
oklch(55.5% 0.116 152.9)
-
Step 700
700
#237242
oklch(49.2% 0.108 152.9)
-
Step 800
800 (this color)
#1B5933
oklch(41.4% 0.089 152.9)
-
Step 900
900
#204C2F
oklch(37.6% 0.07 152.7)
-
Step 950
950
#142D1C
oklch(27.1% 0.045 152.8)
#1B5933 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) | #595130 | 0.077 |
| Deuteranopia (no green cones) | #514C35 | 0.075 |
| Tritanopia (no blue cones) | #01584F | 0.045 |
| Achromatopsia (no color) | #4E4E4E | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5933
#1B5933
oklch(41.4% 0.089 152.9)
- #673760
#673760
oklch(41.3% 0.09 332.6)
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 #1B5933, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.019
- Pine #2B5D34 ΔE 0.020
- Navy Green #35530A ΔE 0.041
- Deep Green #02590F ΔE 0.044
- Forest #0B5509 ΔE 0.046
- Dark Blue Green #005249 ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.057
- Army Green #4B5D16 ΔE 0.060
Use #1B5933 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.