#669A33
Closest named color: Flat Green (#699D4C). oklch(62.8% 0.145 132.2), rgb(102, 154, 51).
Aa
Black text reads best on this color (6.23:1).
About this color
#669A33 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.145 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.024 away. Black text reads best on it, at 6.23:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.23:1 |
| White text | 3.36:1 |
Values
| HEX | #669A33 |
| RGB | rgb(102, 154, 51) |
| HSL | hsl(90, 50%, 40%) |
| OKLCH | oklch(62.8% 0.145 132.2) |
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 #669A33 | 3.36:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #669A33 | 6.23:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #669A33 text on white | 3.36:1 | AA large text | Lc 61.0 | Content text, not long reading |
| #669A33 text on black | 6.23:1 | AA | Lc -40.7 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E5EDDF
oklch(93.6% 0.02 131.5)
-
Step 200
200
#D0DFC5
oklch(88.5% 0.039 131.9)
-
Step 300
300
#B0CB9C
oklch(81% 0.07 132.2)
-
Step 400
400
#86AF64
oklch(70.6% 0.112 132.1)
-
Step 500
500 (this color)
#669A33
oklch(62.8% 0.145 132.2)
-
Step 600
600
#4E8500
oklch(55.6% 0.155 132.4)
-
Step 700
700
#417000
oklch(49.2% 0.137 132.3)
-
Step 800
800
#345B00
oklch(42.5% 0.119 132.3)
-
Step 900
900
#2D4B0D
oklch(37.5% 0.094 132.3)
-
Step 950
950
#1B2C0A
oklch(26.9% 0.06 131.8)
#669A33 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) | #A08E25 | 0.081 |
| Deuteranopia (no green cones) | #998A3B | 0.083 |
| Tritanopia (no blue cones) | #679485 | 0.109 |
| Achromatopsia (no color) | #8C8C8C | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669A33
#669A33
oklch(62.8% 0.145 132.2)
- #A66CC7
#A66CC7
oklch(62.8% 0.145 312.2)
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 #669A33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.024
- Muted Green #5FA052 ΔE 0.029
- Olive Drab #6B8E23 ΔE 0.033
- Dark Yellow Green #728F02 ΔE 0.033
- Off Green #6BA353 ΔE 0.037
- Mid Green #50A747 ΔE 0.038
- Mossy Green #638B27 ΔE 0.043
- Drab Green #749551 ΔE 0.043
Use #669A33 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.