#A66100
Closest named color: Raw Umber (#A75E09). oklch(55.8% 0.126 64), rgb(166, 97, 0).
Aa
White text reads best on this color (4.84:1).
About this color
#A66100 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 56%, its chroma 0.126 and its hue 64°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.009 away. White text reads best on it, at 4.84:1.
| Hue family | Browns |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.33:1 |
| White text | 4.84:1 |
Values
| HEX | #A66100 |
| RGB | rgb(166, 97, 0) |
| HSL | hsl(35, 100%, 33%) |
| OKLCH | oklch(55.8% 0.126 64) |
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 #A66100 | 4.84:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #A66100 | 4.33:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #A66100 text on white | 4.84:1 | AA | Lc 73.2 | Content text, not long reading |
| #A66100 text on black | 4.33:1 | AA large text | Lc -28.5 | 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
#F9F4F0
oklch(97% 0.008 61.5)
-
Step 100
100
#F2E8DF
oklch(93.6% 0.016 64.7)
-
Step 200
200
#E9D5C4
oklch(88.5% 0.032 62.8)
-
Step 300
300
#DBB99B
oklch(80.8% 0.056 63.3)
-
Step 400
400
#C99463
oklch(70.7% 0.091 63.2)
-
Step 500
500
#BA7934
oklch(63.2% 0.116 64.2)
-
Step 600
600 (this color)
#A66100
oklch(55.8% 0.126 64)
-
Step 700
700
#8B5100
oklch(49.2% 0.111 64.6)
-
Step 800
800
#734100
oklch(42.7% 0.097 63.4)
-
Step 900
900
#5D380E
oklch(37.8% 0.076 64.4)
-
Step 950
950
#37210A
oklch(27.1% 0.049 64.1)
#A66100 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) | #776800 | 0.085 |
| Deuteranopia (no green cones) | #877802 | 0.078 |
| Tritanopia (no blue cones) | #B65152 | 0.093 |
| Achromatopsia (no color) | #717171 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66100
#A66100
oklch(55.8% 0.126 64)
- #1D7AB8
#1D7AB8
oklch(55.8% 0.126 244)
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 #A66100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.009
- Orangey Brown #B16002 ΔE 0.021
- Raw Sienna #9A6200 ΔE 0.022
- Umber #B26400 ΔE 0.024
- Sepia #985E2B ΔE 0.035
- Copper #B66325 ΔE 0.037
- Earth #A2653E ΔE 0.039
- Caramel #AF6F09 ΔE 0.040
Use #A66100 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.