#669A55
Closest named color: Flat Green (#699D4C). oklch(63.2% 0.113 138.3), rgb(102, 154, 85).
Aa
Black text reads best on this color (6.31:1).
About this color
#669A55 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.113 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.016 away. Black text reads best on it, at 6.31:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.31:1 |
| White text | 3.32:1 |
Values
| HEX | #669A55 |
| RGB | rgb(102, 154, 85) |
| HSL | hsl(105, 29%, 47%) |
| OKLCH | oklch(63.2% 0.113 138.3) |
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 #669A55 | 3.32:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #669A55 | 6.31:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #669A55 text on white | 3.32:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #669A55 text on black | 6.31:1 | AA | Lc -41.2 | 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
#E5EDE2
oklch(93.7% 0.017 137)
-
Step 200
200
#CFDECB
oklch(88.4% 0.03 139.1)
-
Step 300
300
#AFCAA7
oklch(80.9% 0.056 138.6)
-
Step 400
400
#85AE78
oklch(70.7% 0.088 138.3)
-
Step 500
500 (this color)
#669A55
oklch(63.2% 0.113 138.3)
-
Step 600
600
#4C8439
oklch(55.7% 0.123 138.4)
-
Step 700
700
#3D6F2B
oklch(49% 0.113 138.2)
-
Step 800
800
#335B25
oklch(42.8% 0.094 138.3)
-
Step 900
900
#2D4B23
oklch(37.8% 0.074 138.3)
-
Step 950
950
#1A2C15
oklch(27% 0.047 139.1)
#669A55 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) | #9E9050 | 0.077 |
| Deuteranopia (no green cones) | #968B59 | 0.076 |
| Tritanopia (no blue cones) | #639689 | 0.076 |
| Achromatopsia (no color) | #8D8D8D | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669A55
#669A55
oklch(63.2% 0.113 138.3)
- #A773B6
#A773B6
oklch(63.3% 0.113 318.5)
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 #669A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.016
- Drab Green #749551 ΔE 0.020
- Muted Green #5FA052 ΔE 0.020
- Moss #769958 ΔE 0.020
- Off Green #6BA353 ΔE 0.028
- Light Forest Green #4F9153 ΔE 0.038
- Camo #7F8F4E ΔE 0.040
- Dull Green #74A662 ΔE 0.040
Use #669A55 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.