#318C33
Closest named color: Forest Green (#228B22). oklch(56.6% 0.153 143.6), rgb(49, 140, 51).
Aa
Black text reads best on this color (4.92:1).
About this color
#318C33 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.153 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.018 away. Black text reads best on it, at 4.92:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.92:1 |
| White text | 4.25:1 |
Values
| HEX | #318C33 |
| RGB | rgb(49, 140, 51) |
| HSL | hsl(121, 48%, 37%) |
| OKLCH | oklch(56.6% 0.153 143.6) |
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 #318C33 | 4.25:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #318C33 | 4.92:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #318C33 text on white | 4.25:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #318C33 text on black | 4.92:1 | AA | Lc -32.6 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#CBE0C9
oklch(88.5% 0.038 142.8)
-
Step 300
300
#A7CDA5
oklch(81% 0.069 143.6)
-
Step 400
400
#76B273
oklch(70.6% 0.109 143.2)
-
Step 500
500
#4E9F4E
oklch(63.2% 0.141 143.7)
-
Step 600
600 (this color)
#318C33
oklch(56.6% 0.153 143.6)
-
Step 700
700
#1F7422
oklch(49.1% 0.142 143.5)
-
Step 800
800
#1C5E1E
oklch(42.5% 0.117 143.6)
-
Step 900
900
#1E4E1F
oklch(37.8% 0.092 143.8)
-
Step 950
950
#132E13
oklch(27.2% 0.058 143.8)
#318C33 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) | #8F7F29 | 0.112 |
| Deuteranopia (no green cones) | #84783A | 0.111 |
| Tritanopia (no blue cones) | #1D8879 | 0.096 |
| Achromatopsia (no color) | #7B7B7B | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #318C33
#318C33
oklch(56.6% 0.153 143.6)
- #A052A9
#A052A9
oklch(56.6% 0.153 323.4)
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 #318C33, closest first.
No curated palette has a color within ΔE 0.04 of #318C33.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.018
- Kelley Green #009337 ΔE 0.023
- Emerald Green #028F1E ΔE 0.029
- Irish Green #019529 ΔE 0.034
- Sap Green #5C8B15 ΔE 0.038
- Fern Green #548D44 ΔE 0.039
- Dark Grass Green #388004 ΔE 0.039
- Sea Green #2E8B57 ΔE 0.043
Use #318C33 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.