#618D4B
Closest named color: Fern Green (#548D44). oklch(59.5% 0.106 136), rgb(97, 141, 75).
Aa
Black text reads best on this color (5.41:1).
About this color
#618D4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.106 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.018 away. Black text reads best on it, at 5.41:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #618D4B |
| RGB | rgb(97, 141, 75) |
| HSL | hsl(100, 31%, 42%) |
| OKLCH | oklch(59.5% 0.106 136) |
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 #618D4B | 3.87:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #618D4B | 5.41:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #618D4B text on white | 3.87:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #618D4B text on black | 5.41:1 | AA | Lc -35.6 | 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
#E5ECE2
oklch(93.5% 0.015 136.1)
-
Step 200
200
#D1DECB
oklch(88.6% 0.029 135.6)
-
Step 300
300
#B2C9A8
oklch(81% 0.052 136.2)
-
Step 400
400
#89AD79
oklch(70.7% 0.083 136.3)
-
Step 500
500 (this color)
#618D4B
oklch(59.5% 0.106 136)
-
Step 600
600
#53823A
oklch(55.6% 0.115 135.9)
-
Step 700
700
#436E2C
oklch(49.1% 0.107 136)
-
Step 800
800
#385A25
oklch(42.8% 0.09 135.6)
-
Step 900
900
#304A23
oklch(37.7% 0.07 136)
-
Step 950
950
#1C2B15
oklch(26.9% 0.044 136.3)
#618D4B 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) | #918446 | 0.068 |
| Deuteranopia (no green cones) | #8B804F | 0.068 |
| Tritanopia (no blue cones) | #60897D | 0.074 |
| Achromatopsia (no color) | #818181 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618D4B
#618D4B
oklch(59.5% 0.106 136)
- #976AA9
#976AA9
oklch(59.4% 0.106 315.9)
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 #618D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.018
- Moss Green #658B38 ΔE 0.019
- Light Forest Green #4F9153 ΔE 0.020
- Khaki Green #728639 ΔE 0.027
- Swamp #698339 ΔE 0.029
- Dark Sage #598556 ΔE 0.033
- Mossy Green #638B27 ΔE 0.033
- Drab Green #749551 ΔE 0.035
Use #618D4B 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.