#669B00
Closest named color: Grassy Green (#419C03). oklch(62.8% 0.168 129.7), rgb(102, 155, 0).
Aa
Black text reads best on this color (6.25:1).
About this color
#669B00 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.168 and its hue 130°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.035 away. Black text reads best on it, at 6.25:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.25:1 |
| White text | 3.35:1 |
Values
| HEX | #669B00 |
| RGB | rgb(102, 155, 0) |
| HSL | hsl(81, 100%, 30%) |
| OKLCH | oklch(62.8% 0.168 129.7) |
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 #669B00 | 3.35:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #669B00 | 6.25:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #669B00 text on white | 3.35:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #669B00 text on black | 6.25:1 | AA | Lc -41.0 | 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
#F3F7EF
oklch(97.1% 0.011 128.6)
-
Step 100
100
#E5EDDD
oklch(93.6% 0.023 128.7)
-
Step 200
200
#CFE0C0
oklch(88.5% 0.047 130.2)
-
Step 300
300
#AFCC93
oklch(80.9% 0.083 130)
-
Step 400
400
#85B153
oklch(70.8% 0.133 130)
-
Step 500
500 (this color)
#669B00
oklch(62.8% 0.168 129.7)
-
Step 600
600
#568300
oklch(55.6% 0.149 129.6)
-
Step 700
700
#476E00
oklch(49% 0.131 129.8)
-
Step 800
800
#3A5A00
oklch(42.6% 0.114 129.5)
-
Step 900
900
#2F4B00
oklch(37.6% 0.101 129.8)
-
Step 950
950
#1B2D02
oklch(27.1% 0.07 129.9)
#669B00 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) | #A38F00 | 0.088 |
| Deuteranopia (no green cones) | #9C8B1D | 0.087 |
| Tritanopia (no blue cones) | #699483 | 0.131 |
| Achromatopsia (no color) | #8C8C8C | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669B00
#669B00
oklch(62.8% 0.168 129.7)
- #A767D3
#A767D3
oklch(62.8% 0.167 309.8)
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 #669B00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.035
- Dark Yellow Green #728F02 ΔE 0.036
- Grass Green #3F9B0B ΔE 0.036
- Leaf Green #5CA904 ΔE 0.040
- Olive Drab #6B8E23 ΔE 0.043
- Mid Green #50A747 ΔE 0.044
- Grass #5CAC2D ΔE 0.046
- Flat Green #699D4C ΔE 0.047
Use #669B00 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.