#288D46
Closest named color: Sea Green (#2E8B57). oklch(56.9% 0.14 149.2), rgb(40, 141, 70).
Aa
Black text reads best on this color (4.98:1).
About this color
#288D46 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.140 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.025 away. Black text reads best on it, at 4.98:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.98:1 |
| White text | 4.20:1 |
Values
| HEX | #288D46 |
| RGB | rgb(40, 141, 70) |
| HSL | hsl(138, 56%, 35%) |
| OKLCH | oklch(56.9% 0.14 149.2) |
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 #288D46 | 4.20:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #288D46 | 4.98:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #288D46 text on white | 4.20:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #288D46 text on black | 4.98:1 | AA | Lc -33.0 | 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
#E2EDE3
oklch(93.5% 0.018 148.1)
-
Step 200
200
#CAE0CD
oklch(88.5% 0.035 149.3)
-
Step 300
300
#A5CDAB
oklch(81% 0.064 149.2)
-
Step 400
400
#72B27E
oklch(70.6% 0.1 149.2)
-
Step 500
500
#489F5D
oklch(63.2% 0.129 149.3)
-
Step 600
600 (this color)
#288D46
oklch(56.9% 0.14 149.2)
-
Step 700
700
#127434
oklch(49.1% 0.13 149.2)
-
Step 800
800
#155F2C
oklch(42.9% 0.108 149.2)
-
Step 900
900
#1A4E27
oklch(37.8% 0.086 148.9)
-
Step 950
950
#112E18
oklch(27.2% 0.054 149.5)
#288D46 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) | #8E8140 | 0.114 |
| Deuteranopia (no green cones) | #82784B | 0.113 |
| Tritanopia (no blue cones) | #008A7C | 0.079 |
| Achromatopsia (no color) | #7B7B7B | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288D46
#288D46
oklch(56.9% 0.14 149.2)
- #A3559F
#A3559F
oklch(56.9% 0.14 329.1)
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 #288D46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.025
- Kelley Green #009337 ΔE 0.031
- Fern Green #548D44 ΔE 0.035
- Forest Green #228B22 ΔE 0.035
- Jungle Green #048243 ΔE 0.038
- Light Forest Green #4F9153 ΔE 0.039
- Viridian #1E9167 ΔE 0.041
- Emerald Green #028F1E ΔE 0.043
Use #288D46 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.