#31AE38
Closest named color: Medium Green (#39AD48). oklch(66% 0.191 143.7), rgb(49, 174, 56).
Aa
Black text reads best on this color (7.24:1).
About this color
#31AE38 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.191 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.017 away. Black text reads best on it, at 7.24:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.191) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.24:1 |
| White text | 2.89:1 |
Values
| HEX | #31AE38 |
| RGB | rgb(49, 174, 56) |
| HSL | hsl(123, 56%, 44%) |
| OKLCH | oklch(66% 0.191 143.7) |
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 #31AE38 | 2.89:1 | Fails | Lc -60.1 | Content text, not long reading |
| Black text on #31AE38 | 7.24:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #31AE38 text on white | 2.89:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #31AE38 text on black | 7.24:1 | AAA | Lc -47.0 | 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 500.
-
Step 50
50
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C5E3C4
oklch(88.6% 0.053 144.3)
-
Step 300
300
#9CD19A
oklch(80.9% 0.094 143.8)
-
Step 400
400
#61B861
oklch(70.7% 0.149 143.8)
-
Step 500
500 (this color)
#31AE38
oklch(66% 0.191 143.7)
-
Step 600
600
#008C18
oklch(55.5% 0.181 143.8)
-
Step 700
700
#007612
oklch(49.1% 0.161 143.7)
-
Step 800
800
#00610D
oklch(42.7% 0.14 143.7)
-
Step 900
900
#005109
oklch(37.7% 0.123 143.7)
-
Step 950
950
#063009
oklch(27.1% 0.079 144.1)
#31AE38 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) | #B19E28 | 0.138 |
| Deuteranopia (no green cones) | #A39443 | 0.138 |
| Tritanopia (no blue cones) | #00A996 | 0.120 |
| Achromatopsia (no color) | #989898 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31AE38
#31AE38
oklch(66% 0.191 143.7)
- #C862D3
#C862D3
oklch(66% 0.19 323.6)
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 #31AE38, closest first.
No curated palette has a color within ΔE 0.04 of #31AE38.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.017
- Kelly Green #02AB2E ΔE 0.020
- Shamrock #01B44C ΔE 0.021
- Grass #5CAC2D ΔE 0.028
- Leaf Green #5CA904 ΔE 0.031
- Mid Green #50A747 ΔE 0.034
- Leafy Green #51B73B ΔE 0.036
- Dark Pastel Green #56AE57 ΔE 0.044
Use #31AE38 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.