#288451
Closest named color: Sea Green (#2E8B57). oklch(54.6% 0.117 154.8), rgb(40, 132, 81).
Aa
White text reads best on this color (4.65:1).
About this color
#288451 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.117 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.022 away. White text reads best on it, at 4.65:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.50:1 |
| White text | 4.65:1 |
Values
| HEX | #288451 |
| RGB | rgb(40, 132, 81) |
| HSL | hsl(147, 53%, 34%) |
| OKLCH | oklch(54.6% 0.117 154.8) |
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 #288451 | 4.65:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #288451 | 4.50:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #288451 text on white | 4.65:1 | AA | Lc 72.0 | Content text, not long reading |
| #288451 text on black | 4.50:1 | AA | Lc -29.7 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CBDFD1
oklch(88.5% 0.029 155.2)
-
Step 300
300
#A7CBB2
oklch(80.9% 0.052 154.8)
-
Step 400
400
#75B089
oklch(70.6% 0.084 154.7)
-
Step 500
500
#4E9D6C
oklch(63.2% 0.108 154.6)
-
Step 600
600 (this color)
#288451
oklch(54.6% 0.117 154.8)
-
Step 700
700
#1D7244
oklch(49% 0.108 154.8)
-
Step 800
800
#1B5D38
oklch(42.7% 0.09 154.7)
-
Step 900
900
#1E4C31
oklch(37.6% 0.069 155.2)
-
Step 950
950
#132D1D
oklch(27.1% 0.044 155)
#288451 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) | #84794E | 0.105 |
| Deuteranopia (no green cones) | #787154 | 0.102 |
| Tritanopia (no blue cones) | #008377 | 0.057 |
| Achromatopsia (no color) | #747474 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288451
#288451
oklch(54.6% 0.117 154.8)
- #99548C
#99548C
oklch(54.6% 0.117 334.4)
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 #288451, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.022
- Jungle Green #048243 ΔE 0.025
- Viridian #1E9167 ΔE 0.042
- Dark Sage #598556 ΔE 0.045
- Fern Green #548D44 ΔE 0.052
- Light Forest Green #4F9153 ΔE 0.054
- Tree Green #2A7E19 ΔE 0.056
- Military Green #667C3E ΔE 0.059
Use #288451 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.