#51B035
Closest named color: Grass (#5CAC2D). oklch(67.5% 0.183 139.5), rgb(81, 176, 53).
Aa
Black text reads best on this color (7.61:1).
About this color
#51B035 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.183 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.012 away. Black text reads best on it, at 7.61:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #51B035 |
| RGB | rgb(81, 176, 53) |
| HSL | hsl(106, 54%, 45%) |
| OKLCH | oklch(67.5% 0.183 139.5) |
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 #51B035 | 2.75:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #51B035 | 7.61:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #51B035 text on white | 2.75:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #51B035 text on black | 7.61:1 | AAA | Lc -48.9 | 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
#F0F8EE
oklch(97% 0.016 139.4)
-
Step 100
100
#DFF0DB
oklch(93.7% 0.033 139.7)
-
Step 200
200
#C4E4BC
oklch(88.5% 0.064 139.4)
-
Step 300
300
#9AD38B
oklch(81% 0.115 139.2)
-
Step 400
400 (this color)
#51B035
oklch(67.5% 0.183 139.5)
-
Step 500
500
#36A400
oklch(63.1% 0.201 139.5)
-
Step 600
600
#2C8A00
oklch(55.6% 0.177 139.5)
-
Step 700
700
#247400
oklch(49.1% 0.156 139.5)
-
Step 800
800
#1C5F00
oklch(42.6% 0.136 139.5)
-
Step 900
900
#164F00
oklch(37.6% 0.119 139.4)
-
Step 950
950
#0A3000
oklch(27.2% 0.086 139.4)
#51B035 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) | #B5A122 | 0.121 |
| Deuteranopia (no green cones) | #A99941 | 0.122 |
| Tritanopia (no blue cones) | #47AA97 | 0.124 |
| Achromatopsia (no color) | #9C9C9C | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51B035
#51B035
oklch(67.5% 0.183 139.5)
- #C66CDC
#C66CDC
oklch(67.5% 0.182 319.5)
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 #51B035, closest first.
No curated palette has a color within ΔE 0.04 of #51B035.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.012
- Leafy Green #51B73B ΔE 0.020
- Leaf Green #5CA904 ΔE 0.024
- Medium Green #39AD48 ΔE 0.024
- Shamrock #01B44C ΔE 0.031
- Leaf #71AA34 ΔE 0.033
- Mid Green #50A747 ΔE 0.034
- Dark Pastel Green #56AE57 ΔE 0.035
Use #51B035 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.