#51BA58
Closest named color: Cool Green (#33B864). oklch(70.5% 0.168 144.7), rgb(81, 186, 88).
Aa
Black text reads best on this color (8.51:1).
About this color
#51BA58 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.168 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.022 away. Black text reads best on it, at 8.51:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.51:1 |
| White text | 2.46:1 |
Values
| HEX | #51BA58 |
| RGB | rgb(81, 186, 88) |
| HSL | hsl(124, 43%, 52%) |
| OKLCH | oklch(70.5% 0.168 144.7) |
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 #51BA58 | 2.46:1 | Fails | Lc -53.2 | Large or bold text, headings |
| Black text on #51BA58 | 8.51:1 | AAA | Lc 55.8 | Large or bold text, headings |
| #51BA58 text on white | 2.46:1 | Fails | Lc 48.2 | Large or bold text, headings |
| #51BA58 text on black | 8.51:1 | AAA | Lc -53.8 | 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
#DEF0DE
oklch(93.7% 0.031 145.3)
-
Step 200
200
#C2E4C2
oklch(88.5% 0.058 145.1)
-
Step 300
300
#96D396
oklch(81% 0.105 144.5)
-
Step 400
400 (this color)
#51BA58
oklch(70.5% 0.168 144.7)
-
Step 500
500
#00A62A
oklch(63% 0.2 144.8)
-
Step 600
600
#008C22
oklch(55.6% 0.176 144.8)
-
Step 700
700
#00761B
oklch(49.2% 0.156 144.8)
-
Step 800
800
#006114
oklch(42.8% 0.136 144.7)
-
Step 900
900
#00510F
oklch(37.8% 0.12 144.7)
-
Step 950
950
#003006
oklch(26.9% 0.085 144.8)
#51BA58 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) | #BDAB4F | 0.126 |
| Deuteranopia (no green cones) | #AFA15F | 0.126 |
| Tritanopia (no blue cones) | #3EB6A4 | 0.103 |
| Achromatopsia (no color) | #A5A5A5 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51BA58
#51BA58
oklch(70.5% 0.168 144.7)
- #D277D9
#D277D9
oklch(70.4% 0.168 324.5)
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 #51BA58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.022
- Leafy Green #51B73B ΔE 0.026
- Dark Mint #48C072 ΔE 0.029
- Turtle Green #75B84F ΔE 0.030
- Algae Green #21C36F ΔE 0.032
- Dark Mint Green #20C073 ΔE 0.032
- Boring Green #63B365 ΔE 0.032
- Dark Pastel Green #56AE57 ΔE 0.034
Use #51BA58 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.