#28B057
Closest named color: Medium Green (#39AD48). oklch(66.7% 0.171 149.7), rgb(40, 176, 87).
Aa
Black text reads best on this color (7.43:1).
About this color
#28B057 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.171 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.015 away. Black text reads best on it, at 7.43:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.43:1 |
| White text | 2.82:1 |
Values
| HEX | #28B057 |
| RGB | rgb(40, 176, 87) |
| HSL | hsl(141, 63%, 42%) |
| OKLCH | oklch(66.7% 0.171 149.7) |
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 #28B057 | 2.82:1 | Fails | Lc -59.0 | Large or bold text, headings |
| Black text on #28B057 | 7.43:1 | AAA | Lc 50.3 | Large or bold text, headings |
| #28B057 text on white | 2.82:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #28B057 text on black | 7.43:1 | AAA | Lc -48.1 | 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 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
#C5E2C9
oklch(88.5% 0.046 149.2)
-
Step 300
300
#9AD0A4
oklch(80.8% 0.083 149.9)
-
Step 400
400
#5CB872
oklch(70.8% 0.135 149.6)
-
Step 500
500 (this color)
#28B057
oklch(66.7% 0.171 149.7)
-
Step 600
600
#008B3D
oklch(55.6% 0.154 149.7)
-
Step 700
700
#007532
oklch(49.1% 0.137 149.6)
-
Step 800
800
#006028
oklch(42.7% 0.119 149.7)
-
Step 900
900
#005020
oklch(37.7% 0.105 149.6)
-
Step 950
950
#032F12
oklch(26.8% 0.07 150)
#28B057 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) | #B1A050 | 0.140 |
| Deuteranopia (no green cones) | #A2955E | 0.139 |
| Tritanopia (no blue cones) | #00AD9B | 0.094 |
| Achromatopsia (no color) | #9A9A9A | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28B057
#28B057
oklch(66.7% 0.171 149.7)
- #CC68C6
#CC68C6
oklch(66.6% 0.171 329.6)
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 #28B057, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.015
- Shamrock #01B44C ΔE 0.021
- Jade Green #2BAF6A ΔE 0.025
- Cool Green #33B864 ΔE 0.026
- Dark Pastel Green #56AE57 ΔE 0.028
- Mid Green #50A747 ΔE 0.030
- Seaweed Green #35AD6B ΔE 0.030
- Medium Sea Green #3CB371 ΔE 0.035
Use #28B057 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.