#51BB48
Closest named color: Leafy Green (#51B73B). oklch(70.5% 0.183 142.1), rgb(81, 187, 72).
Aa
Black text reads best on this color (8.55:1).
About this color
#51BB48 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.183 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.014 away. Black text reads best on it, at 8.55:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.55:1 |
| White text | 2.45:1 |
Values
| HEX | #51BB48 |
| RGB | rgb(81, 187, 72) |
| HSL | hsl(115, 46%, 51%) |
| OKLCH | oklch(70.5% 0.183 142.1) |
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 #51BB48 | 2.45:1 | Fails | Lc -53.0 | Large or bold text, headings |
| Black text on #51BB48 | 8.55:1 | AAA | Lc 56.0 | Large or bold text, headings |
| #51BB48 text on white | 2.45:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #51BB48 text on black | 8.55:1 | AAA | Lc -54.1 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DEF0DC
oklch(93.6% 0.033 142.5)
-
Step 200
200
#C2E4BE
oklch(88.4% 0.063 142.2)
-
Step 300
300
#95D48F
oklch(81% 0.115 142.4)
-
Step 400
400 (this color)
#51BB48
oklch(70.5% 0.183 142.1)
-
Step 500
500
#11A700
oklch(63.2% 0.213 142.1)
-
Step 600
600
#0D8C00
oklch(55.6% 0.187 142)
-
Step 700
700
#097600
oklch(49.1% 0.165 142.1)
-
Step 800
800
#066100
oklch(42.8% 0.144 142)
-
Step 900
900
#045100
oklch(37.8% 0.127 142.1)
-
Step 950
950
#013000
oklch(26.8% 0.091 142.2)
#51BB48 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) | #BFAB3B | 0.129 |
| Deuteranopia (no green cones) | #B2A251 | 0.129 |
| Tritanopia (no blue cones) | #41B6A2 | 0.117 |
| Achromatopsia (no color) | #A5A5A5 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51BB48
#51BB48
oklch(70.5% 0.183 142.1)
- #D374E2
#D374E2
oklch(70.5% 0.182 322)
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 #51BB48, closest first.
No curated palette has a color within ΔE 0.04 of #51BB48.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.014
- Shamrock Green #02C14D ΔE 0.030
- Frog Green #58BC08 ΔE 0.034
- Cool Green #33B864 ΔE 0.035
- Turtle Green #75B84F ΔE 0.035
- Algae Green #21C36F ΔE 0.040
- Shamrock #01B44C ΔE 0.040
- Grass #5CAC2D ΔE 0.041
Use #51BB48 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.