#288256
Closest named color: Sea Green (#2E8B57). oklch(54.2% 0.109 157.8), rgb(40, 130, 86).
Aa
White text reads best on this color (4.75:1).
About this color
#288256 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.109 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.029 away. White text reads best on it, at 4.75:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #288256 |
| RGB | rgb(40, 130, 86) |
| HSL | hsl(151, 53%, 33%) |
| OKLCH | oklch(54.2% 0.109 157.8) |
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 #288256 | 4.75:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #288256 | 4.41:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #288256 text on white | 4.75:1 | AA | Lc 72.7 | Content text, not long reading |
| #288256 text on black | 4.41:1 | AA large text | Lc -29.0 | 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
#CBDFD2
oklch(88.5% 0.028 157.3)
-
Step 300
300
#A7CBB5
oklch(81% 0.049 158.3)
-
Step 400
400
#76B08E
oklch(70.8% 0.079 157.9)
-
Step 500
500
#4F9C72
oklch(63.2% 0.1 157.9)
-
Step 600
600 (this color)
#288256
oklch(54.2% 0.109 157.8)
-
Step 700
700
#1E724A
oklch(49.2% 0.102 157.9)
-
Step 800
800
#1C5D3D
oklch(42.8% 0.085 158)
-
Step 900
900
#1E4C34
oklch(37.7% 0.066 158.1)
-
Step 950
950
#132D1E
oklch(27.1% 0.043 156.6)
#288256 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) | #817853 | 0.101 |
| Deuteranopia (no green cones) | #756F59 | 0.099 |
| Tritanopia (no blue cones) | #008176 | 0.049 |
| Achromatopsia (no color) | #737373 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288256
#288256
oklch(54.2% 0.109 157.8)
- #975485
#975485
oklch(54.1% 0.11 337.9)
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 #288256, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.029
- Jungle Green #048243 ΔE 0.031
- Viridian #1E9167 ΔE 0.045
- Dark Sage #598556 ΔE 0.046
- Fern Green #548D44 ΔE 0.059
- Military Green #667C3E ΔE 0.060
- Light Forest Green #4F9153 ΔE 0.060
- Tree Green #2A7E19 ΔE 0.064
Use #288256 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.