#31BC4F
Closest named color: Shamrock Green (#02C14D). oklch(69.9% 0.19 146.6), rgb(49, 188, 79).
Aa
Black text reads best on this color (8.43:1).
About this color
#31BC4F is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.190 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock Green (#02C14D), ΔE 0.017 away. Black text reads best on it, at 8.43:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.190) |
| Temperature | in between |
| Nearest name | Shamrock Green (#02C14D) |
| Black text | 8.43:1 |
| White text | 2.48:1 |
Values
| HEX | #31BC4F |
| RGB | rgb(49, 188, 79) |
| HSL | hsl(133, 59%, 46%) |
| OKLCH | oklch(69.9% 0.19 146.6) |
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 #31BC4F | 2.48:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #31BC4F | 8.43:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #31BC4F text on white | 2.48:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #31BC4F text on black | 8.43:1 | AAA | Lc -53.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF9EF
oklch(97.2% 0.017 145.4)
-
Step 100
100
#DCF1DD
oklch(93.7% 0.035 146.6)
-
Step 200
200
#BEE6C0
oklch(88.6% 0.066 146.3)
-
Step 300
300
#8CD593
oklch(80.8% 0.118 146.7)
-
Step 400
400 (this color)
#31BC4F
oklch(69.9% 0.19 146.6)
-
Step 500
500
#00A639
oklch(63.1% 0.19 146.6)
-
Step 600
600
#008C2F
oklch(55.7% 0.167 146.6)
-
Step 700
700
#007526
oklch(49% 0.147 146.7)
-
Step 800
800
#00601E
oklch(42.6% 0.127 146.7)
-
Step 900
900
#005017
oklch(37.6% 0.113 146.6)
-
Step 950
950
#00300B
oklch(26.9% 0.08 146.8)
#31BC4F 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) | #BFAB44 | 0.147 |
| Deuteranopia (no green cones) | #AFA058 | 0.146 |
| Tritanopia (no blue cones) | #00B8A4 | 0.113 |
| Achromatopsia (no color) | #A4A4A4 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31BC4F
#31BC4F
oklch(69.9% 0.19 146.6)
- #D96DDB
#D96DDB
oklch(69.9% 0.19 326.7)
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 #31BC4F, closest first.
No curated palette has a color within ΔE 0.04 of #31BC4F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock Green #02C14D ΔE 0.017
- Leafy Green #51B73B ΔE 0.022
- Shamrock #01B44C ΔE 0.028
- Cool Green #33B864 ΔE 0.029
- Algae Green #21C36F ΔE 0.034
- Dark Mint Green #20C073 ΔE 0.038
- Frog Green #58BC08 ΔE 0.041
- Medium Green #39AD48 ΔE 0.042
Use #31BC4F 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.