#31A660
Closest named color: Seaweed Green (#35AD6B). oklch(64.4% 0.147 152.7), rgb(49, 166, 96).
Aa
Black text reads best on this color (6.75:1).
About this color
#31A660 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.147 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed Green (#35AD6B), ΔE 0.022 away. Black text reads best on it, at 6.75:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Seaweed Green (#35AD6B) |
| Black text | 6.75:1 |
| White text | 3.10:1 |
Values
| HEX | #31A660 |
| RGB | rgb(49, 166, 96) |
| HSL | hsl(144, 54%, 42%) |
| OKLCH | oklch(64.4% 0.147 152.7) |
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 #31A660 | 3.10:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #31A660 | 6.75:1 | AA | Lc 46.4 | Large or bold text, headings |
| #31A660 text on white | 3.10:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #31A660 text on black | 6.75:1 | AA | Lc -44.1 | 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
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C6E1CD
oklch(88.4% 0.039 153.4)
-
Step 300
300
#9ECFAB
oklch(81% 0.072 152.8)
-
Step 400
400
#64B57E
oklch(70.7% 0.114 152.9)
-
Step 500
500 (this color)
#31A660
oklch(64.4% 0.147 152.7)
-
Step 600
600
#008A47
oklch(55.5% 0.144 152.6)
-
Step 700
700
#00743B
oklch(49% 0.127 152.7)
-
Step 800
800
#005F2F
oklch(42.5% 0.11 152.7)
-
Step 900
900
#044F27
oklch(37.6% 0.095 152.7)
-
Step 950
950
#082F17
oklch(27.1% 0.062 152.3)
#31A660 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) | #A6985B | 0.126 |
| Deuteranopia (no green cones) | #988E65 | 0.124 |
| Tritanopia (no blue cones) | #00A495 | 0.076 |
| Achromatopsia (no color) | #929292 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A660
#31A660
oklch(64.4% 0.147 152.7)
- #C068B3
#C068B3
oklch(64.3% 0.146 332.8)
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 #31A660, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed Green #35AD6B ΔE 0.022
- Jade #1FA774 ΔE 0.025
- Jade Green #2BAF6A ΔE 0.026
- Mid Green #50A747 ΔE 0.032
- Algae #54AC68 ΔE 0.034
- Muted Green #5FA052 ΔE 0.034
- Dark Seafoam Green #3EAF76 ΔE 0.036
- Bluey Green #2BB179 ΔE 0.038
Use #31A660 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.