#288359
Closest named color: Sea Green (#2E8B57). oklch(54.5% 0.108 159.2), rgb(40, 131, 89).
Aa
White text reads best on this color (4.68:1).
About this color
#288359 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.108 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.027 away. White text reads best on it, at 4.68:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #288359 |
| RGB | rgb(40, 131, 89) |
| HSL | hsl(152, 53%, 34%) |
| OKLCH | oklch(54.5% 0.108 159.2) |
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 #288359 | 4.68:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #288359 | 4.48:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #288359 text on white | 4.68:1 | AA | Lc 72.2 | Content text, not long reading |
| #288359 text on black | 4.48:1 | AA large text | Lc -29.5 | Dividers and decoration only |
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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CBDFD3
oklch(88.5% 0.027 159.5)
-
Step 300
300
#A7CBB5
oklch(81% 0.049 158.3)
-
Step 400
400
#75B08F
oklch(70.7% 0.079 159.1)
-
Step 500
500
#4E9C74
oklch(63.2% 0.099 159.3)
-
Step 600
600 (this color)
#288359
oklch(54.5% 0.108 159.2)
-
Step 700
700
#1D724C
oklch(49.2% 0.1 159.3)
-
Step 800
800
#1B5D3E
oklch(42.8% 0.084 158.9)
-
Step 900
900
#1E4C35
oklch(37.7% 0.065 159.2)
-
Step 950
950
#132D1F
oklch(27.2% 0.042 158.4)
#288359 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) | #827956 | 0.101 |
| Deuteranopia (no green cones) | #76705C | 0.099 |
| Tritanopia (no blue cones) | #008278 | 0.048 |
| Achromatopsia (no color) | #747474 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288359
#288359
oklch(54.5% 0.108 159.2)
- #995685
#995685
oklch(54.7% 0.108 339.2)
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 #288359, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.027
- Jungle Green #048243 ΔE 0.035
- Viridian #1E9167 ΔE 0.041
- Dark Sage #598556 ΔE 0.044
- Light Forest Green #4F9153 ΔE 0.058
- Fern Green #548D44 ΔE 0.058
- Military Green #667C3E ΔE 0.061
- Teal #008080 ΔE 0.063
Use #288359 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.