#288E35
Closest named color: Kelley Green (#009337). oklch(57% 0.157 145.1), rgb(40, 142, 53).
Aa
Black text reads best on this color (5.01:1).
About this color
#288E35 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.157 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.017 away. Black text reads best on it, at 5.01:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.01:1 |
| White text | 4.19:1 |
Values
| HEX | #288E35 |
| RGB | rgb(40, 142, 53) |
| HSL | hsl(128, 56%, 36%) |
| OKLCH | oklch(57% 0.157 145.1) |
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 #288E35 | 4.19:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #288E35 | 5.01:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #288E35 text on white | 4.19:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #288E35 text on black | 5.01:1 | AA | Lc -33.2 | 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
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#CAE0CA
oklch(88.4% 0.038 145.2)
-
Step 300
300
#A5CDA5
oklch(80.9% 0.07 144.9)
-
Step 400
400
#72B374
oklch(70.7% 0.112 145)
-
Step 500
500
#48A04F
oklch(63.2% 0.145 145.1)
-
Step 600
600 (this color)
#288E35
oklch(57% 0.157 145.1)
-
Step 700
700
#127523
oklch(49.2% 0.146 145)
-
Step 800
800
#145F1F
oklch(42.6% 0.121 145.1)
-
Step 900
900
#1A4E1F
oklch(37.7% 0.094 145.1)
-
Step 950
950
#112E13
oklch(27.1% 0.06 145)
#288E35 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) | #90812B | 0.117 |
| Deuteranopia (no green cones) | #84793C | 0.116 |
| Tritanopia (no blue cones) | #008A7B | 0.097 |
| Achromatopsia (no color) | #7C7C7C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288E35
#288E35
oklch(57% 0.157 145.1)
- #A451A9
#A451A9
oklch(57% 0.157 325.2)
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 #288E35, closest first.
No curated palette has a color within ΔE 0.04 of #288E35.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.017
- Forest Green #228B22 ΔE 0.018
- Emerald Green #028F1E ΔE 0.025
- Irish Green #019529 ΔE 0.028
- True Green #089404 ΔE 0.040
- Sap Green #5C8B15 ΔE 0.042
- Fern Green #548D44 ΔE 0.042
- Dark Grass Green #388004 ΔE 0.043
Use #288E35 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.