#5B9151
Closest named color: Light Forest Green (#4F9153). oklch(60.3% 0.11 140.6), rgb(91, 145, 81).
Aa
Black text reads best on this color (5.61:1).
About this color
#5B9151 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.110 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.012 away. Black text reads best on it, at 5.61:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #5B9151 |
| RGB | rgb(91, 145, 81) |
| HSL | hsl(111, 28%, 44%) |
| OKLCH | oklch(60.3% 0.11 140.6) |
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 #5B9151 | 3.74:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #5B9151 | 5.61:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #5B9151 text on white | 3.74:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #5B9151 text on black | 5.61:1 | AA | Lc -36.8 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CFDECC
oklch(88.4% 0.029 140.5)
-
Step 300
300
#AFCAA9
oklch(81% 0.054 140)
-
Step 400
400
#83AE7B
oklch(70.6% 0.086 140.6)
-
Step 500
500 (this color)
#5B9151
oklch(60.3% 0.11 140.6)
-
Step 600
600
#49843E
oklch(55.6% 0.12 140.6)
-
Step 700
700
#3A7030
oklch(49.2% 0.112 140.6)
-
Step 800
800
#315B29
oklch(42.7% 0.091 140.5)
-
Step 900
900
#2B4B25
oklch(37.7% 0.073 140.5)
-
Step 950
950
#1A2C16
oklch(27% 0.046 140)
#5B9151 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) | #94874C | 0.078 |
| Deuteranopia (no green cones) | #8C8255 | 0.077 |
| Tritanopia (no blue cones) | #578D81 | 0.072 |
| Achromatopsia (no color) | #848484 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B9151
#5B9151
oklch(60.3% 0.11 140.6)
- #9E6AA9
#9E6AA9
oklch(60.2% 0.11 320.4)
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 #5B9151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.012
- Fern Green #548D44 ΔE 0.020
- Moss Green #658B38 ΔE 0.027
- Drab Green #749551 ΔE 0.033
- Khaki Green #728639 ΔE 0.039
- Mossy Green #638B27 ΔE 0.039
- Dark Sage #598556 ΔE 0.039
- Swamp #698339 ΔE 0.041
Use #5B9151 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.