#129251
Closest named color: Sea Green (#2E8B57). oklch(58.1% 0.143 153.7), rgb(18, 146, 81).
Aa
Black text reads best on this color (5.25:1).
About this color
#129251 is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.143 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.027 away. Black text reads best on it, at 5.25:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #129251 |
| RGB | rgb(18, 146, 81) |
| HSL | hsl(150, 78%, 32%) |
| OKLCH | oklch(58.1% 0.143 153.7) |
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 #129251 | 3.99:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #129251 | 5.25:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #129251 text on white | 3.99:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #129251 text on black | 5.25:1 | AA | Lc -34.9 | 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 600.
-
Step 50
50
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE4
oklch(93.7% 0.019 152.8)
-
Step 200
200
#C8E0CE
oklch(88.4% 0.035 153.2)
-
Step 300
300
#A1CDAE
oklch(80.8% 0.064 154.1)
-
Step 400
400
#6BB383
oklch(70.6% 0.102 153.8)
-
Step 500
500
#3BA063
oklch(63.1% 0.131 153.6)
-
Step 600
600 (this color)
#129251
oklch(58.1% 0.143 153.7)
-
Step 700
700
#00743E
oklch(49% 0.124 153.9)
-
Step 800
800
#005F32
oklch(42.6% 0.107 154.1)
-
Step 900
900
#104E2B
oklch(37.6% 0.086 153.6)
-
Step 950
950
#0D2E1A
oklch(27% 0.054 153.9)
#129251 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) | #92854C | 0.124 |
| Deuteranopia (no green cones) | #847B56 | 0.122 |
| Tritanopia (no blue cones) | #009082 | 0.073 |
| Achromatopsia (no color) | #7F7F7F | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129251
#129251
oklch(58.1% 0.143 153.7)
- #AB569D
#AB569D
oklch(58% 0.142 333.8)
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 #129251, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.027
- Kelley Green #009337 ΔE 0.032
- Viridian #1E9167 ΔE 0.032
- Light Forest Green #4F9153 ΔE 0.037
- Fern Green #548D44 ΔE 0.040
- Forest Green #228B22 ΔE 0.046
- Irish Green #019529 ΔE 0.046
- Jungle Green #048243 ΔE 0.049
Use #129251 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.