#31BC73
Closest named color: Dark Mint Green (#20C073). oklch(70.5% 0.158 155.1), rgb(49, 188, 115).
Aa
Black text reads best on this color (8.57:1).
About this color
#31BC73 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.158 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint Green (#20C073), ΔE 0.012 away. Black text reads best on it, at 8.57:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Dark Mint Green (#20C073) |
| Black text | 8.57:1 |
| White text | 2.44:1 |
Values
| HEX | #31BC73 |
| RGB | rgb(49, 188, 115) |
| HSL | hsl(148, 59%, 46%) |
| OKLCH | oklch(70.5% 0.158 155.1) |
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 #31BC73 | 2.44:1 | Fails | Lc -52.7 | Large or bold text, headings |
| Black text on #31BC73 | 8.57:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #31BC73 text on white | 2.44:1 | Fails | Lc 47.7 | Large or bold text, headings |
| #31BC73 text on black | 8.57:1 | AAA | Lc -54.3 | 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
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DCF0E2
oklch(93.6% 0.028 155.3)
-
Step 200
200
#BDE4CA
oklch(88.4% 0.054 156)
-
Step 300
300
#8BD4A5
oklch(80.9% 0.099 155.3)
-
Step 400
400 (this color)
#31BC73
oklch(70.5% 0.158 155.1)
-
Step 500
500
#00A45E
oklch(63.1% 0.156 155.1)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007441
oklch(49.1% 0.121 155.2)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#31BC73 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) | #BBAD6E | 0.140 |
| Deuteranopia (no green cones) | #ABA178 | 0.138 |
| Tritanopia (no blue cones) | #00BAAA | 0.078 |
| Achromatopsia (no color) | #A5A5A5 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31BC73
#31BC73
oklch(70.5% 0.158 155.1)
- #DB76C7
#DB76C7
oklch(70.5% 0.159 335)
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 #31BC73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint Green #20C073 ΔE 0.012
- Dark Mint #48C072 ΔE 0.018
- Cool Green #33B864 ΔE 0.019
- Algae Green #21C36F ΔE 0.023
- Medium Sea Green #3CB371 ΔE 0.025
- Green Teal #0CB577 ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.026
- Green Blue #01C08D ΔE 0.032
Use #31BC73 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.