#66973C
Closest named color: Flat Green (#699D4C). oklch(62.1% 0.133 132.8), rgb(102, 151, 60).
Aa
Black text reads best on this color (6.05:1).
About this color
#66973C is a medium-light, moderately saturated green. In OKLCH its lightness is 62%, its chroma 0.133 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.021 away. Black text reads best on it, at 6.05:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #66973C |
| RGB | rgb(102, 151, 60) |
| HSL | hsl(92, 43%, 41%) |
| OKLCH | oklch(62.1% 0.133 132.8) |
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 #66973C | 3.46:1 | AA large text | Lc -67.5 | Content text, not long reading |
| Black text on #66973C | 6.05:1 | AA | Lc 42.0 | Non-text elements, placeholder text |
| #66973C text on white | 3.46:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #66973C text on black | 6.05:1 | AA | Lc -39.6 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE0
oklch(93.6% 0.019 133.1)
-
Step 200
200
#D0DFC6
oklch(88.6% 0.037 132.7)
-
Step 300
300
#B1CA9F
oklch(80.9% 0.065 132.3)
-
Step 400
400
#87AF6A
oklch(70.8% 0.105 133)
-
Step 500
500 (this color)
#66973C
oklch(62.1% 0.133 132.8)
-
Step 600
600
#508419
oklch(55.6% 0.145 132.8)
-
Step 700
700
#407007
oklch(49.2% 0.135 133)
-
Step 800
800
#355B0D
oklch(42.7% 0.112 132.9)
-
Step 900
900
#2F4B15
oklch(37.8% 0.087 132.6)
-
Step 950
950
#1C2C0E
oklch(27% 0.055 132.4)
#66973C 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) | #9D8C32 | 0.077 |
| Deuteranopia (no green cones) | #968843 | 0.078 |
| Tritanopia (no blue cones) | #679183 | 0.099 |
| Achromatopsia (no color) | #8A8A8A | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66973C
#66973C
oklch(62.1% 0.133 132.8)
- #A26DBF
#A26DBF
oklch(62.2% 0.132 312.8)
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 #66973C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.021
- Olive Drab #6B8E23 ΔE 0.027
- Muted Green #5FA052 ΔE 0.028
- Dark Yellow Green #728F02 ΔE 0.032
- Drab Green #749551 ΔE 0.033
- Moss Green #658B38 ΔE 0.035
- Mossy Green #638B27 ΔE 0.036
- Off Green #6BA353 ΔE 0.038
Use #66973C 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.