#1B5F2F
Closest named color: Spruce (#0A5F38). oklch(43.1% 0.103 149.4), rgb(27, 95, 47).
Aa
White text reads best on this color (7.70:1).
About this color
#1B5F2F is a dark, moderately saturated green. In OKLCH its lightness is 43%, its chroma 0.103 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.013 away. White text reads best on it, at 7.70:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #1B5F2F |
| RGB | rgb(27, 95, 47) |
| HSL | hsl(138, 56%, 24%) |
| OKLCH | oklch(43.1% 0.103 149.4) |
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 #1B5F2F | 7.70:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #1B5F2F | 2.72:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #1B5F2F text on white | 7.70:1 | AAA | Lc 86.4 | Fine for body text |
| #1B5F2F text on black | 2.72:1 | Fails | Lc -15.6 | 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
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CE
oklch(88.6% 0.033 149.5)
-
Step 300
300
#A6CCAC
oklch(80.9% 0.06 149.5)
-
Step 400
400
#74B280
oklch(70.8% 0.097 149.5)
-
Step 500
500
#4C9E60
oklch(63.2% 0.123 149.6)
-
Step 600
600
#2A8846
oklch(55.6% 0.133 149.5)
-
Step 700
700
#1A7337
oklch(49% 0.124 149.5)
-
Step 800
800 (this color)
#1B5F2F
oklch(43.1% 0.103 149.4)
-
Step 900
900
#1D4D29
oklch(37.7% 0.08 149.3)
-
Step 950
950
#122D18
oklch(26.9% 0.051 149.2)
#1B5F2F 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) | #60562B | 0.085 |
| Deuteranopia (no green cones) | #575132 | 0.082 |
| Tritanopia (no blue cones) | #005D54 | 0.058 |
| Achromatopsia (no color) | #535353 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5F2F
#1B5F2F
oklch(43.1% 0.103 149.4)
- #6E396B
#6E396B
oklch(43.1% 0.102 329.3)
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 #1B5F2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.013
- Pine #2B5D34 ΔE 0.017
- Deep Green #02590F ΔE 0.039
- Navy Green #35530A ΔE 0.043
- Forest #0B5509 ΔE 0.047
- Dark Green #006400 ΔE 0.048
- Army Green #4B5D16 ΔE 0.050
- Camouflage Green #4B6113 ΔE 0.053
Use #1B5F2F 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.