#66730B
Closest named color: Olive Green (#677A04). oklch(52.7% 0.118 117.4), rgb(102, 115, 11).
Aa
White text reads best on this color (5.22:1).
About this color
#66730B is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.118 and its hue 117°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.021 away. White text reads best on it, at 5.22:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.02:1 |
| White text | 5.22:1 |
Values
| HEX | #66730B |
| RGB | rgb(102, 115, 11) |
| HSL | hsl(68, 83%, 25%) |
| OKLCH | oklch(52.7% 0.118 117.4) |
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 #66730B | 5.22:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #66730B | 4.02:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #66730B text on white | 5.22:1 | AA | Lc 75.8 | Fine for body text |
| #66730B text on black | 4.02:1 | AA large text | Lc -26.0 | Dividers and decoration only |
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 600.
-
Step 50
50
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E9EBE0
oklch(93.6% 0.015 115)
-
Step 200
200
#D7DCC6
oklch(88.5% 0.03 117.4)
-
Step 300
300
#BDC69F
oklch(80.9% 0.054 118.2)
-
Step 400
400
#9CA86A
oklch(70.7% 0.085 117.6)
-
Step 500
500
#849240
oklch(63.1% 0.108 117.7)
-
Step 600
600 (this color)
#66730B
oklch(52.7% 0.118 117.4)
-
Step 700
700
#5C680A
oklch(49% 0.11 117.5)
-
Step 800
800
#4B550F
oklch(42.7% 0.091 117.7)
-
Step 900
900
#3F4616
oklch(37.6% 0.07 116.9)
-
Step 950
950
#25290E
oklch(27% 0.044 116.5)
#66730B 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) | #7C6C00 | 0.038 |
| Deuteranopia (no green cones) | #7A6D18 | 0.037 |
| Tritanopia (no blue cones) | #6D6C61 | 0.102 |
| Achromatopsia (no color) | #6C6C6C | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66730B
#66730B
oklch(52.7% 0.118 117.4)
- #735AA6
#735AA6
oklch(52.7% 0.118 297.3)
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 #66730B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.021
- Murky Green #6C7A0E ΔE 0.023
- Browny Green #6F6C0A ΔE 0.024
- Brown Green #706C11 ΔE 0.026
- Muddy Green #657432 ΔE 0.026
- Mud Green #606602 ΔE 0.040
- Military Green #667C3E ΔE 0.041
- Dark Olive Green #556B2F ΔE 0.045
Use #66730B 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.