#289B50
Closest named color: Kelley Green (#009337). oklch(60.9% 0.15 150.3), rgb(40, 155, 80).
Aa
Black text reads best on this color (5.89:1).
About this color
#289B50 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.150 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.037 away. Black text reads best on it, at 5.89:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #289B50 |
| RGB | rgb(40, 155, 80) |
| HSL | hsl(141, 59%, 38%) |
| OKLCH | oklch(60.9% 0.15 150.3) |
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 #289B50 | 3.56:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #289B50 | 5.89:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #289B50 text on white | 3.56:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #289B50 text on black | 5.89:1 | AA | Lc -38.9 | 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 500.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C7E1CB
oklch(88.5% 0.041 149.8)
-
Step 300
300
#9FCFA8
oklch(81% 0.074 150.1)
-
Step 400
400
#66B579
oklch(70.6% 0.118 150.2)
-
Step 500
500 (this color)
#289B50
oklch(60.9% 0.15 150.3)
-
Step 600
600
#008B40
oklch(55.7% 0.152 150.4)
-
Step 700
700
#007534
oklch(49.2% 0.135 150.2)
-
Step 800
800
#00602A
oklch(42.8% 0.117 150.4)
-
Step 900
900
#084F24
oklch(37.6% 0.097 150.6)
-
Step 950
950
#0A2F15
oklch(27.1% 0.063 149.8)
#289B50 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) | #9C8D4A | 0.125 |
| Deuteranopia (no green cones) | #8E8455 | 0.122 |
| Tritanopia (no blue cones) | #009889 | 0.082 |
| Achromatopsia (no color) | #888888 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #289B50
#289B50
oklch(60.9% 0.15 150.3)
- #B45DAD
#B45DAD
oklch(60.9% 0.151 330.3)
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 #289B50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.039
- Irish Green #019529 ΔE 0.044
- Fern Green #548D44 ΔE 0.045
- Muted Green #5FA052 ΔE 0.047
- Jade #1FA774 ΔE 0.049
- Viridian #1E9167 ΔE 0.050
- Mid Green #50A747 ΔE 0.050
Use #289B50 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.