#51BC80
Closest named color: Dark Mint (#48C072). oklch(71.7% 0.133 156.1), rgb(81, 188, 128).
Aa
Black text reads best on this color (8.85:1).
About this color
#51BC80 is a medium-light, moderately saturated green. In OKLCH its lightness is 72%, its chroma 0.133 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.026 away. Black text reads best on it, at 8.85:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 8.85:1 |
| White text | 2.37:1 |
Values
| HEX | #51BC80 |
| RGB | rgb(81, 188, 128) |
| HSL | hsl(146, 44%, 53%) |
| OKLCH | oklch(71.7% 0.133 156.1) |
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 #51BC80 | 2.37:1 | Fails | Lc -51.4 | Large or bold text, headings |
| Black text on #51BC80 | 8.85:1 | AAA | Lc 57.5 | Large or bold text, headings |
| #51BC80 text on white | 2.37:1 | Fails | Lc 46.5 | Large or bold text, headings |
| #51BC80 text on black | 8.85:1 | AAA | Lc -55.6 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DEEFE3
oklch(93.6% 0.024 155.1)
-
Step 200
200
#C2E3CD
oklch(88.6% 0.046 156.2)
-
Step 300
300
#94D1AA
oklch(80.8% 0.083 156)
-
Step 400
400 (this color)
#51BC80
oklch(71.7% 0.133 156.1)
-
Step 500
500
#00A461
oklch(63.2% 0.153 156.1)
-
Step 600
600
#008A51
oklch(55.7% 0.135 156.2)
-
Step 700
700
#007443
oklch(49.1% 0.119 156.1)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#51BC80 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) | #BBAF7C | 0.120 |
| Deuteranopia (no green cones) | #ACA484 | 0.117 |
| Tritanopia (no blue cones) | #2DBAAC | 0.064 |
| Achromatopsia (no color) | #A8A8A8 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51BC80
#51BC80
oklch(71.7% 0.133 156.1)
- #D782C3
#D782C3
oklch(71.7% 0.133 336.1)
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 #51BC80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.026
- Greenblue #23C48B ΔE 0.027
- Green Blue #01C08D ΔE 0.029
- Boring Green #63B365 ΔE 0.034
- Medium Sea Green #3CB371 ΔE 0.035
- Dark Mint Green #20C073 ΔE 0.035
- Soft Green #6FC276 ΔE 0.035
- Dark Seafoam #1FB57A ΔE 0.036
Use #51BC80 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.