#31AA38
Closest named color: Medium Green (#39AD48). oklch(64.9% 0.186 143.8), rgb(49, 170, 56).
Aa
Black text reads best on this color (6.93:1).
About this color
#31AA38 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.186 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 6.93:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 6.93:1 |
| White text | 3.02:1 |
Values
| HEX | #31AA38 |
| RGB | rgb(49, 170, 56) |
| HSL | hsl(123, 55%, 43%) |
| OKLCH | oklch(64.9% 0.186 143.8) |
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 #31AA38 | 3.02:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #31AA38 | 6.93:1 | AA | Lc 47.5 | Large or bold text, headings |
| #31AA38 text on white | 3.02:1 | AA large text | Lc 56.5 | Large or bold text, headings |
| #31AA38 text on black | 6.93:1 | AA | Lc -45.2 | 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
#C6E2C4
oklch(88.4% 0.05 143.3)
-
Step 300
300
#9DD09B
oklch(80.8% 0.091 143.8)
-
Step 400
400
#63B863
oklch(70.8% 0.146 143.8)
-
Step 500
500 (this color)
#31AA38
oklch(64.9% 0.186 143.8)
-
Step 600
600
#008C18
oklch(55.5% 0.181 143.8)
-
Step 700
700
#007613
oklch(49.1% 0.16 143.8)
-
Step 800
800
#00610E
oklch(42.8% 0.139 143.9)
-
Step 900
900
#02510B
oklch(37.8% 0.122 143.8)
-
Step 950
950
#082F0A
oklch(26.9% 0.076 143.8)
#31AA38 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) | #AD9A29 | 0.135 |
| Deuteranopia (no green cones) | #9F9042 | 0.136 |
| Tritanopia (no blue cones) | #02A593 | 0.118 |
| Achromatopsia (no color) | #949494 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31AA38
#31AA38
oklch(64.9% 0.186 143.8)
- #C460CE
#C460CE
oklch(64.9% 0.186 323.9)
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 #31AA38, closest first.
No curated palette has a color within ΔE 0.04 of #31AA38.
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 0.017
- Shamrock #01B44C ΔE 0.029
- Mid Green #50A747 ΔE 0.029
- Grass #5CAC2D ΔE 0.032
- Leaf Green #5CA904 ΔE 0.033
- Grassy Green #419C03 ΔE 0.041
- Grass Green #3F9B0B ΔE 0.043
Use #31AA38 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.