#478A18
Closest named color: Sap Green (#5C8B15). oklch(56.7% 0.157 136), rgb(71, 138, 24).
Aa
Black text reads best on this color (4.91:1).
About this color
#478A18 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.157 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.023 away. Black text reads best on it, at 4.91:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #478A18 |
| RGB | rgb(71, 138, 24) |
| HSL | hsl(95, 70%, 32%) |
| OKLCH | oklch(56.7% 0.157 136) |
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 #478A18 | 4.27:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #478A18 | 4.91:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #478A18 text on white | 4.27:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #478A18 text on black | 4.91:1 | AA | Lc -32.4 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E4EDE0
oklch(93.6% 0.02 135.8)
-
Step 200
200
#CEE0C6
oklch(88.6% 0.04 135.9)
-
Step 300
300
#ACCC9E
oklch(81% 0.072 136.2)
-
Step 400
400
#80B168
oklch(70.8% 0.114 135.9)
-
Step 500
500
#5F9C3C
oklch(63% 0.144 135.8)
-
Step 600
600 (this color)
#478A18
oklch(56.7% 0.157 136)
-
Step 700
700
#357200
oklch(49.1% 0.146 136)
-
Step 800
800
#2D5D09
oklch(42.8% 0.121 135.9)
-
Step 900
900
#284C13
oklch(37.6% 0.094 136.1)
-
Step 950
950
#182D0D
oklch(27.1% 0.06 136.2)
#478A18 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) | #8F7E00 | 0.096 |
| Deuteranopia (no green cones) | #867826 | 0.097 |
| Tritanopia (no blue cones) | #448575 | 0.112 |
| Achromatopsia (no color) | #7A7A7A | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #478A18
#478A18
oklch(56.7% 0.157 136)
- #9A54B4
#9A54B4
oklch(56.7% 0.158 316.1)
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 #478A18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.023
- Forest Green #228B22 ΔE 0.025
- Emerald Green #028F1E ΔE 0.034
- Mossy Green #638B27 ΔE 0.035
- Dark Grass Green #388004 ΔE 0.035
- Kelley Green #009337 ΔE 0.037
- Irish Green #019529 ΔE 0.040
- Fern Green #548D44 ΔE 0.042
Use #478A18 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.