#185B33
Closest named color: Spruce (#0A5F38). oklch(41.9% 0.094 152.9), rgb(24, 91, 51).
Aa
White text reads best on this color (8.12:1).
About this color
#185B33 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.094 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.013 away. White text reads best on it, at 8.12:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #185B33 |
| RGB | rgb(24, 91, 51) |
| HSL | hsl(144, 58%, 23%) |
| OKLCH | oklch(41.9% 0.094 152.9) |
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 #185B33 | 8.12:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #185B33 | 2.58:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #185B33 text on white | 8.12:1 | AAA | Lc 87.8 | Fine for body text |
| #185B33 text on black | 2.58:1 | Fails | Lc -14.3 | 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
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CBDFD0
oklch(88.5% 0.029 153.3)
-
Step 300
300
#A7CBB0
oklch(80.8% 0.054 152.7)
-
Step 400
400
#75B187
oklch(70.8% 0.088 153.2)
-
Step 500
500
#4D9D68
oklch(63.1% 0.113 152.9)
-
Step 600
600
#2B8750
oklch(55.5% 0.121 153.2)
-
Step 700
700
#1C7340
oklch(49.2% 0.114 152.8)
-
Step 800
800 (this color)
#185B33
oklch(41.9% 0.094 152.9)
-
Step 900
900
#1E4D2E
oklch(37.8% 0.074 152.4)
-
Step 950
950
#132D1B
oklch(27% 0.047 152.1)
#185B33 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) | #5B5330 | 0.081 |
| Deuteranopia (no green cones) | #534D36 | 0.080 |
| Tritanopia (no blue cones) | #005A51 | 0.048 |
| Achromatopsia (no color) | #4F4F4F | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #185B33
#185B33
oklch(41.9% 0.094 152.9)
- #6A3763
#6A3763
oklch(41.8% 0.095 332.4)
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 #185B33, 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 0.042
- Navy Green #35530A ΔE 0.042
- Forest #0B5509 ΔE 0.046
- Dark Blue Green #005249 ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.056
- Army Green #4B5D16 ΔE 0.058
Use #185B33 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.