#1B643B
Closest named color: Spruce (#0A5F38). oklch(44.8% 0.098 154.3), rgb(27, 100, 59).
Aa
White text reads best on this color (7.16:1).
About this color
#1B643B is a dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.098 and its hue 154°. 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 7.16:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.93:1 |
| White text | 7.16:1 |
Values
| HEX | #1B643B |
| RGB | rgb(27, 100, 59) |
| HSL | hsl(146, 57%, 25%) |
| OKLCH | oklch(44.8% 0.098 154.3) |
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 #1B643B | 7.16:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #1B643B | 2.93:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #1B643B text on white | 7.16:1 | AAA | Lc 84.5 | Fine for body text |
| #1B643B text on black | 2.93:1 | Fails | Lc -17.5 | Dividers and decoration only |
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
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CAE0D0
oklch(88.6% 0.032 154.1)
-
Step 300
300
#A5CCB0
oklch(80.9% 0.057 153.8)
-
Step 400
400
#71B287
oklch(70.8% 0.092 154.4)
-
Step 500
500
#479E69
oklch(63.1% 0.117 154.4)
-
Step 600
600
#208850
oklch(55.5% 0.127 154.4)
-
Step 700
700
#0E7341
oklch(49% 0.117 154.6)
-
Step 800
800 (this color)
#1B643B
oklch(44.8% 0.098 154.3)
-
Step 900
900
#194D2F
oklch(37.7% 0.076 154.8)
-
Step 950
950
#112D1B
oklch(26.9% 0.048 153.5)
#1B643B 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) | #645B38 | 0.087 |
| Deuteranopia (no green cones) | #5B553E | 0.085 |
| Tritanopia (no blue cones) | #00635A | 0.049 |
| Achromatopsia (no color) | #585858 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B643B
#1B643B
oklch(44.8% 0.098 154.3)
- #753E6B
#753E6B
oklch(44.8% 0.098 334.2)
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 #1B643B, 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 0.022
- Dark Green Blue #1F6357 ΔE 0.045
- Army Green #4B5D16 ΔE 0.053
- Camouflage Green #4B6113 ΔE 0.053
- Dark Green #006400 ΔE 0.058
- Camo Green #526525 ΔE 0.058
- Deep Green #02590F ΔE 0.058
Use #1B643B 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.