#51A754
Closest named color: Mid Green (#50A747). oklch(65.5% 0.145 144.3), rgb(81, 167, 84).
Aa
Black text reads best on this color (7.00:1).
About this color
#51A754 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.145 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.014 away. Black text reads best on it, at 7.00:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #51A754 |
| RGB | rgb(81, 167, 84) |
| HSL | hsl(122, 35%, 49%) |
| OKLCH | oklch(65.5% 0.145 144.3) |
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 #51A754 | 2.99:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #51A754 | 7.00:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #51A754 text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #51A754 text on black | 7.00:1 | AAA | Lc -45.4 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CAE0C9
oklch(88.4% 0.039 144)
-
Step 300
300
#A5CDA4
oklch(80.8% 0.071 144.3)
-
Step 400
400
#72B373
oklch(70.6% 0.113 144.6)
-
Step 500
500 (this color)
#51A754
oklch(65.5% 0.145 144.3)
-
Step 600
600
#258A2E
oklch(55.7% 0.158 144.3)
-
Step 700
700
#157521
oklch(49.2% 0.147 144.4)
-
Step 800
800
#165F1D
oklch(42.7% 0.122 144.4)
-
Step 900
900
#1B4E1E
oklch(37.7% 0.095 144.4)
-
Step 950
950
#112E12
oklch(27% 0.061 144.3)
#51A754 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) | #AA9A4D | 0.109 |
| Deuteranopia (no green cones) | #9E925A | 0.108 |
| Tritanopia (no blue cones) | #44A394 | 0.090 |
| Achromatopsia (no color) | #959595 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51A754
#51A754
oklch(65.5% 0.145 144.3)
- #BC6FC2
#BC6FC2
oklch(65.6% 0.145 324.4)
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 #51A754, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.014
- Fern #63A950 ΔE 0.018
- Dark Pastel Green #56AE57 ΔE 0.021
- Muted Green #5FA052 ΔE 0.022
- Algae #54AC68 ΔE 0.025
- Off Green #6BA353 ΔE 0.026
- Seaweed Green #35AD6B ΔE 0.028
- Medium Green #39AD48 ΔE 0.030
Use #51A754 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.