#669C3B
Closest named color: Flat Green (#699D4C). oklch(63.4% 0.141 133.5), rgb(102, 156, 59).
Aa
Black text reads best on this color (6.38:1).
About this color
#669C3B is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.141 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.018 away. Black text reads best on it, at 6.38:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.38:1 |
| White text | 3.28:1 |
Values
| HEX | #669C3B |
| RGB | rgb(102, 156, 59) |
| HSL | hsl(93, 45%, 42%) |
| OKLCH | oklch(63.4% 0.141 133.5) |
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 #669C3B | 3.28:1 | AA large text | Lc -65.5 | Content text, not long reading |
| Black text on #669C3B | 6.38:1 | AA | Lc 44.0 | Non-text elements, placeholder text |
| #669C3B text on white | 3.28:1 | AA large text | Lc 60.1 | Content text, not long reading |
| #669C3B text on black | 6.38:1 | AA | Lc -41.6 | 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
#CFDFC6
oklch(88.5% 0.038 134.1)
-
Step 300
300
#AFCB9D
oklch(80.9% 0.07 133.3)
-
Step 400
400
#84B067
oklch(70.8% 0.111 133.8)
-
Step 500
500 (this color)
#669C3B
oklch(63.4% 0.141 133.5)
-
Step 600
600
#4C850D
oklch(55.6% 0.153 133.4)
-
Step 700
700
#3D7000
oklch(49% 0.14 133.6)
-
Step 800
800
#325C05
oklch(42.7% 0.119 133.7)
-
Step 900
900
#2C4C12
oklch(37.8% 0.093 134)
-
Step 950
950
#1A2C0C
oklch(26.9% 0.058 133.6)
#669C3B 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) | #A29030 | 0.083 |
| Deuteranopia (no green cones) | #9A8C42 | 0.083 |
| Tritanopia (no blue cones) | #669687 | 0.104 |
| Achromatopsia (no color) | #8E8E8E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669C3B
#669C3B
oklch(63.4% 0.141 133.5)
- #A86EC6
#A86EC6
oklch(63.3% 0.141 313.3)
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 #669C3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.018
- Muted Green #5FA052 ΔE 0.022
- Off Green #6BA353 ΔE 0.029
- Mid Green #50A747 ΔE 0.033
- Fern #63A950 ΔE 0.037
- Olive Drab #6B8E23 ΔE 0.039
- Dark Yellow Green #728F02 ΔE 0.040
- Drab Green #749551 ΔE 0.040
Use #669C3B 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.