#28B13D
Closest named color: Shamrock (#01B44C). oklch(66.6% 0.193 145), rgb(40, 177, 61).
Aa
Black text reads best on this color (7.44:1).
About this color
#28B13D is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.193 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.014 away. Black text reads best on it, at 7.44:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.193) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.44:1 |
| White text | 2.82:1 |
Values
| HEX | #28B13D |
| RGB | rgb(40, 177, 61) |
| HSL | hsl(129, 63%, 43%) |
| OKLCH | oklch(66.6% 0.193 145) |
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 #28B13D | 2.82:1 | Fails | Lc -58.9 | Large or bold text, headings |
| Black text on #28B13D | 7.44:1 | AAA | Lc 50.4 | Large or bold text, headings |
| #28B13D text on white | 2.82:1 | Fails | Lc 53.6 | Large or bold text, headings |
| #28B13D text on black | 7.44:1 | AAA | Lc -48.2 | 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
#DFEFDF
oklch(93.6% 0.027 145.4)
-
Step 200
200
#C4E3C4
oklch(88.5% 0.053 145.1)
-
Step 300
300
#9AD19B
oklch(80.8% 0.094 145.1)
-
Step 400
400
#5CB962
oklch(70.8% 0.152 145)
-
Step 500
500 (this color)
#28B13D
oklch(66.6% 0.193 145)
-
Step 600
600
#008C24
oklch(55.6% 0.175 145)
-
Step 700
700
#00761D
oklch(49.2% 0.154 145)
-
Step 800
800
#006116
oklch(42.8% 0.135 145)
-
Step 900
900
#005111
oklch(37.8% 0.119 145.1)
-
Step 950
950
#043009
oklch(27% 0.08 144.7)
#28B13D 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) | #B4A02E | 0.144 |
| Deuteranopia (no green cones) | #A59647 | 0.143 |
| Tritanopia (no blue cones) | #00AC99 | 0.120 |
| Achromatopsia (no color) | #9A9A9A | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28B13D
#28B13D
oklch(66.6% 0.193 145)
- #CD62D4
#CD62D4
oklch(66.6% 0.194 325.1)
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 #28B13D, closest first.
No curated palette has a color within ΔE 0.04 of #28B13D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.014
- Medium Green #39AD48 ΔE 0.020
- Kelly Green #02AB2E ΔE 0.024
- Leafy Green #51B73B ΔE 0.032
- Grass #5CAC2D ΔE 0.032
- Leaf Green #5CA904 ΔE 0.037
- Mid Green #50A747 ΔE 0.039
- Cool Green #33B864 ΔE 0.042
Use #28B13D 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.