#51B85D
Closest named color: Cool Green (#33B864). oklch(70% 0.161 145.8), rgb(81, 184, 93).
Aa
Black text reads best on this color (8.36:1).
About this color
#51B85D is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.161 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.018 away. Black text reads best on it, at 8.36:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.36:1 |
| White text | 2.51:1 |
Values
| HEX | #51B85D |
| RGB | rgb(81, 184, 93) |
| HSL | hsl(127, 42%, 52%) |
| OKLCH | oklch(70% 0.161 145.8) |
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 #51B85D | 2.51:1 | Fails | Lc -54.0 | Large or bold text, headings |
| Black text on #51B85D | 8.36:1 | AAA | Lc 55.0 | Large or bold text, headings |
| #51B85D text on white | 2.51:1 | Fails | Lc 49.0 | Large or bold text, headings |
| #51B85D text on black | 8.36:1 | AAA | Lc -53.0 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DEEFDF
oklch(93.5% 0.028 147)
-
Step 200
200
#C3E4C3
oklch(88.6% 0.057 145.1)
-
Step 300
300
#96D299
oklch(80.8% 0.1 145.8)
-
Step 400
400 (this color)
#51B85D
oklch(70% 0.161 145.8)
-
Step 500
500
#00A633
oklch(63.1% 0.194 145.8)
-
Step 600
600
#008C2A
oklch(55.7% 0.171 145.8)
-
Step 700
700
#007622
oklch(49.2% 0.151 145.8)
-
Step 800
800
#00601A
oklch(42.5% 0.131 145.8)
-
Step 900
900
#005114
oklch(37.8% 0.117 145.7)
-
Step 950
950
#003009
oklch(26.9% 0.082 146)
#51B85D 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) | #BBA955 | 0.124 |
| Deuteranopia (no green cones) | #ADA063 | 0.122 |
| Tritanopia (no blue cones) | #3DB4A3 | 0.097 |
| Achromatopsia (no color) | #A3A3A3 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51B85D
#51B85D
oklch(70% 0.161 145.8)
- #D078D4
#D078D4
oklch(70.1% 0.16 325.5)
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 #51B85D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.018
- Boring Green #63B365 ΔE 0.025
- Dark Mint #48C072 ΔE 0.027
- Dark Pastel Green #56AE57 ΔE 0.027
- Dark Mint Green #20C073 ΔE 0.031
- Turtle Green #75B84F ΔE 0.032
- Leafy Green #51B73B ΔE 0.032
- Medium Sea Green #3CB371 ΔE 0.033
Use #51B85D 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.