#A6644D
Closest named color: Earth (#A2653E). oklch(57.1% 0.093 39.9), rgb(166, 100, 77).
Aa
White text reads best on this color (4.61:1).
About this color
#A6644D is a medium-dark, moderately saturated red. In OKLCH its lightness is 57%, its chroma 0.093 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.021 away. White text reads best on it, at 4.61:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.55:1 |
| White text | 4.61:1 |
Values
| HEX | #A6644D |
| RGB | rgb(166, 100, 77) |
| HSL | hsl(16, 37%, 48%) |
| OKLCH | oklch(57.1% 0.093 39.9) |
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 #A6644D | 4.61:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #A6644D | 4.55:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #A6644D text on white | 4.61:1 | AA | Lc 71.8 | Content text, not long reading |
| #A6644D text on black | 4.55:1 | AA | Lc -29.9 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F1E7E4
oklch(93.5% 0.012 37.4)
-
Step 200
200
#E8D4CE
oklch(88.5% 0.024 37.4)
-
Step 300
300
#D9B8AD
oklch(80.8% 0.041 39.3)
-
Step 400
400
#C69381
oklch(70.7% 0.067 40.3)
-
Step 500
500
#B67862
oklch(63.2% 0.085 40.3)
-
Step 600
600 (this color)
#A6644D
oklch(57.1% 0.093 39.9)
-
Step 700
700
#8A4F3A
oklch(49.2% 0.086 40.2)
-
Step 800
800
#704130
oklch(42.8% 0.071 40.5)
-
Step 900
900
#5B372B
oklch(37.7% 0.056 39.2)
-
Step 950
950
#352019
oklch(26.8% 0.035 39.2)
#A6644D 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) | #756C4B | 0.086 |
| Deuteranopia (no green cones) | #857A4C | 0.079 |
| Tritanopia (no blue cones) | #B4595E | 0.047 |
| Achromatopsia (no color) | #757575 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A6644D
#A6644D
oklch(57.1% 0.093 39.9)
- #25849D
#25849D
oklch(57.1% 0.092 219.7)
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 #A6644D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.021
- Clay #B66A50 ΔE 0.034
- Pinkish Brown #B17261 ΔE 0.045
- Copper #B66325 ΔE 0.047
- Mocha #9D7651 ΔE 0.047
- Sepia #985E2B ΔE 0.048
- Adobe #BD6C48 ΔE 0.049
- Clay Brown #B2713D ΔE 0.050
Use #A6644D 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.