#A66409
Closest named color: Raw Umber (#A75E09). oklch(56.4% 0.123 65.4), rgb(166, 100, 9).
Aa
White text reads best on this color (4.72:1).
About this color
#A66409 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 56%, its chroma 0.123 and its hue 65°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.015 away. White text reads best on it, at 4.72:1.
| Hue family | Browns |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #A66409 |
| RGB | rgb(166, 100, 9) |
| HSL | hsl(35, 90%, 34%) |
| OKLCH | oklch(56.4% 0.123 65.4) |
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 #A66409 | 4.72:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #A66409 | 4.44:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #A66409 text on white | 4.72:1 | AA | Lc 72.4 | Content text, not long reading |
| #A66409 text on black | 4.44:1 | AA large text | Lc -29.3 | 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
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F2E8DF
oklch(93.6% 0.016 64.7)
-
Step 200
200
#E8D6C4
oklch(88.6% 0.031 67.4)
-
Step 300
300
#DABA9B
oklch(80.9% 0.056 66)
-
Step 400
400
#C79564
oklch(70.7% 0.089 65)
-
Step 500
500
#B87A36
oklch(63.1% 0.114 65.4)
-
Step 600
600 (this color)
#A66409
oklch(56.4% 0.123 65.4)
-
Step 700
700
#8A5100
oklch(49% 0.11 65.1)
-
Step 800
800
#724201
oklch(42.7% 0.095 64.9)
-
Step 900
900
#5C380F
oklch(37.6% 0.074 64.8)
-
Step 950
950
#36210B
oklch(26.9% 0.047 64.6)
#A66409 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) | #796A00 | 0.081 |
| Deuteranopia (no green cones) | #89790C | 0.072 |
| Tritanopia (no blue cones) | #B65455 | 0.094 |
| Achromatopsia (no color) | #737373 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66409
#A66409
oklch(56.4% 0.123 65.4)
- #287BB9
#287BB9
oklch(56.4% 0.124 245.5)
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 #A66409, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.015
- Orangey Brown #B16002 ΔE 0.021
- Umber #B26400 ΔE 0.022
- Raw Sienna #9A6200 ΔE 0.024
- Caramel #AF6F09 ΔE 0.034
- Copper #B66325 ΔE 0.035
- Earth #A2653E ΔE 0.037
- Sepia #985E2B ΔE 0.038
Use #A66409 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.