#28AF4F
Closest named color: Medium Green (#39AD48). oklch(66.3% 0.177 148.1), rgb(40, 175, 79).
Aa
Black text reads best on this color (7.33:1).
About this color
#28AF4F is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.177 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.009 away. Black text reads best on it, at 7.33:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.33:1 |
| White text | 2.86:1 |
Values
| HEX | #28AF4F |
| RGB | rgb(40, 175, 79) |
| HSL | hsl(137, 63%, 42%) |
| OKLCH | oklch(66.3% 0.177 148.1) |
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 #28AF4F | 2.86:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #28AF4F | 7.33:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #28AF4F text on white | 2.86:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #28AF4F text on black | 7.33:1 | AAA | Lc -47.5 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE1
oklch(93.6% 0.025 149.1)
-
Step 200
200
#C5E2C8
oklch(88.4% 0.047 148.1)
-
Step 300
300
#9BD0A1
oklch(80.8% 0.086 147.7)
-
Step 400
400
#5DB86E
oklch(70.8% 0.138 148.1)
-
Step 500
500 (this color)
#28AF4F
oklch(66.3% 0.177 148.1)
-
Step 600
600
#008B36
oklch(55.5% 0.161 148.1)
-
Step 700
700
#00752D
oklch(49.1% 0.141 148.2)
-
Step 800
800
#006023
oklch(42.7% 0.123 148.1)
-
Step 900
900
#00501C
oklch(37.6% 0.109 148.1)
-
Step 950
950
#043010
oklch(27.2% 0.073 148.1)
#28AF4F 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) | #B19F46 | 0.141 |
| Deuteranopia (no green cones) | #A29456 | 0.140 |
| Tritanopia (no blue cones) | #00AB99 | 0.102 |
| Achromatopsia (no color) | #999999 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28AF4F
#28AF4F
oklch(66.3% 0.177 148.1)
- #CB66C9
#CB66C9
oklch(66.4% 0.176 328.1)
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 #28AF4F, closest first.
No curated palette has a color within ΔE 0.04 of #28AF4F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.009
- Shamrock #01B44C ΔE 0.017
- Mid Green #50A747 ΔE 0.028
- Dark Pastel Green #56AE57 ΔE 0.032
- Jade Green #2BAF6A ΔE 0.032
- Cool Green #33B864 ΔE 0.033
- Kelly Green #02AB2E ΔE 0.034
- Grass #5CAC2D ΔE 0.036
Use #28AF4F 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.