#31A554
Closest named color: Mid Green (#50A747). oklch(63.9% 0.156 149.4), rgb(49, 165, 84).
Aa
Black text reads best on this color (6.64:1).
About this color
#31A554 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.156 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.025 away. Black text reads best on it, at 6.64:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.64:1 |
| White text | 3.16:1 |
Values
| HEX | #31A554 |
| RGB | rgb(49, 165, 84) |
| HSL | hsl(138, 54%, 42%) |
| OKLCH | oklch(63.9% 0.156 149.4) |
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 #31A554 | 3.16:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #31A554 | 6.64:1 | AA | Lc 45.7 | Large or bold text, headings |
| #31A554 text on white | 3.16:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #31A554 text on black | 6.64:1 | AA | Lc -43.4 | 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 500.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE2
oklch(93.5% 0.022 149.7)
-
Step 200
200
#C6E1CA
oklch(88.4% 0.042 149.5)
-
Step 300
300
#9ECFA6
oklch(80.9% 0.077 149.3)
-
Step 400
400
#65B676
oklch(70.8% 0.123 149.2)
-
Step 500
500 (this color)
#31A554
oklch(63.9% 0.156 149.4)
-
Step 600
600
#008B3C
oklch(55.6% 0.155 149.4)
-
Step 700
700
#007531
oklch(49.1% 0.138 149.3)
-
Step 800
800
#006027
oklch(42.7% 0.12 149.3)
-
Step 900
900
#055021
oklch(37.8% 0.102 149.4)
-
Step 950
950
#092F14
oklch(27.1% 0.065 149.3)
#31A554 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) | #A6974D | 0.127 |
| Deuteranopia (no green cones) | #988D5A | 0.126 |
| Tritanopia (no blue cones) | #00A292 | 0.088 |
| Achromatopsia (no color) | #919191 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A554
#31A554
oklch(63.9% 0.156 149.4)
- #BE65B9
#BE65B9
oklch(63.9% 0.155 329.3)
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 #31A554, closest first.
No curated palette has a color within ΔE 0.04 of #31A554.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.025
- Medium Green #39AD48 ΔE 0.031
- Seaweed Green #35AD6B ΔE 0.032
- Jade Green #2BAF6A ΔE 0.033
- Muted Green #5FA052 ΔE 0.035
- Jade #1FA774 ΔE 0.039
- Dark Pastel Green #56AE57 ΔE 0.040
- Fern #63A950 ΔE 0.041
Use #31A554 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.