#28904A
Closest named color: Sea Green (#2E8B57). oklch(57.8% 0.141 150), rgb(40, 144, 74).
Aa
Black text reads best on this color (5.17:1).
About this color
#28904A is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.141 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.026 away. Black text reads best on it, at 5.17:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #28904A |
| RGB | rgb(40, 144, 74) |
| HSL | hsl(140, 57%, 36%) |
| OKLCH | oklch(57.8% 0.141 150) |
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 #28904A | 4.05:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #28904A | 5.17:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #28904A text on white | 4.05:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #28904A text on black | 5.17:1 | AA | Lc -34.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE3
oklch(93.7% 0.019 147.8)
-
Step 200
200
#CAE0CD
oklch(88.5% 0.035 149.3)
-
Step 300
300
#A4CDAB
oklch(80.9% 0.064 149.8)
-
Step 400
400
#71B37F
oklch(70.8% 0.102 149.9)
-
Step 500
500
#469F5E
oklch(63.1% 0.129 150)
-
Step 600
600 (this color)
#28904A
oklch(57.8% 0.141 150)
-
Step 700
700
#0C7435
oklch(49% 0.131 150)
-
Step 800
800
#115F2D
oklch(42.8% 0.108 150.2)
-
Step 900
900
#194E28
oklch(37.8% 0.085 149.7)
-
Step 950
950
#102E18
oklch(27.1% 0.054 150.1)
#28904A 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) | #918344 | 0.116 |
| Deuteranopia (no green cones) | #847B4F | 0.113 |
| Tritanopia (no blue cones) | #008D7F | 0.078 |
| Achromatopsia (no color) | #7E7E7E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28904A
#28904A
oklch(57.8% 0.141 150)
- #A757A1
#A757A1
oklch(57.8% 0.141 330)
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 #28904A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.026
- Kelley Green #009337 ΔE 0.029
- Fern Green #548D44 ΔE 0.033
- Light Forest Green #4F9153 ΔE 0.034
- Viridian #1E9167 ΔE 0.037
- Forest Green #228B22 ΔE 0.040
- Irish Green #019529 ΔE 0.043
- Emerald Green #028F1E ΔE 0.046
Use #28904A 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.