#28B235
Closest named color: Shamrock (#01B44C). oklch(66.8% 0.2 144), rgb(40, 178, 53).
Aa
Black text reads best on this color (7.50:1).
About this color
#28B235 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.200 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.019 away. Black text reads best on it, at 7.50:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.200) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.50:1 |
| White text | 2.79:1 |
Values
| HEX | #28B235 |
| RGB | rgb(40, 178, 53) |
| HSL | hsl(126, 63%, 43%) |
| OKLCH | oklch(66.8% 0.2 144) |
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 #28B235 | 2.79:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #28B235 | 7.50:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #28B235 text on white | 2.79:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #28B235 text on black | 7.50:1 | AAA | Lc -48.6 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C4E3C3
oklch(88.5% 0.054 144.3)
-
Step 300
300
#9AD299
oklch(81% 0.098 144.2)
-
Step 400
400
#5CB95D
oklch(70.7% 0.157 143.9)
-
Step 500
500 (this color)
#28B235
oklch(66.8% 0.2 144)
-
Step 600
600
#008C1B
oklch(55.6% 0.18 144)
-
Step 700
700
#007615
oklch(49.1% 0.159 144)
-
Step 800
800
#00610F
oklch(42.8% 0.139 144)
-
Step 900
900
#00510B
oklch(37.8% 0.122 144)
-
Step 950
950
#033007
oklch(27% 0.083 144.2)
#28B235 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) | #B5A122 | 0.145 |
| Deuteranopia (no green cones) | #A69641 | 0.146 |
| Tritanopia (no blue cones) | #00AD99 | 0.126 |
| Achromatopsia (no color) | #9B9B9B | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28B235
#28B235
oklch(66.8% 0.2 144)
- #CE61D8
#CE61D8
oklch(66.8% 0.199 324.2)
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 #28B235, closest first.
No curated palette has a color within ΔE 0.04 of #28B235.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.019
- Kelly Green #02AB2E ΔE 0.024
- Medium Green #39AD48 ΔE 0.027
- Leafy Green #51B73B ΔE 0.031
- Grass #5CAC2D ΔE 0.033
- Leaf Green #5CA904 ΔE 0.036
- Shamrock Green #02C14D ΔE 0.042
- Mid Green #50A747 ΔE 0.046
Use #28B235 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.