#A64C22
Closest named color: Sienna (#A0522D). oklch(52.5% 0.131 43.3), rgb(166, 76, 34).
Aa
White text reads best on this color (5.70:1).
About this color
#A64C22 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 52%, its chroma 0.131 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.016 away. White text reads best on it, at 5.70:1.
| Hue family | Browns |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.67:1 |
| White text | 5.70:1 |
Values
| HEX | #A64C22 |
| RGB | rgb(166, 76, 34) |
| HSL | hsl(19, 66%, 39%) |
| OKLCH | oklch(52.5% 0.131 43.3) |
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 #A64C22 | 5.70:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #A64C22 | 3.67:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #A64C22 text on white | 5.70:1 | AA | Lc 78.0 | Fine for body text |
| #A64C22 text on black | 3.67:1 | AA large text | Lc -23.8 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E1
oklch(93.7% 0.016 46.6)
-
Step 200
200
#EDD3C8
oklch(88.5% 0.033 44.3)
-
Step 300
300
#E2B5A3
oklch(80.9% 0.058 42.9)
-
Step 400
400
#D28D70
oklch(70.6% 0.094 43.6)
-
Step 500
500
#C56F4A
oklch(63.1% 0.121 43.4)
-
Step 600
600 (this color)
#A64C22
oklch(52.5% 0.131 43.3)
-
Step 700
700
#97451F
oklch(49% 0.121 43.3)
-
Step 800
800
#7B391C
oklch(42.6% 0.101 42.8)
-
Step 900
900
#63321D
oklch(37.6% 0.078 43.1)
-
Step 950
950
#3A1E12
oklch(27% 0.049 43.5)
#A64C22 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) | #655A1C | 0.123 |
| Deuteranopia (no green cones) | #7B6E20 | 0.112 |
| Tritanopia (no blue cones) | #B63843 | 0.067 |
| Achromatopsia (no color) | #666666 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A64C22
#A64C22
oklch(52.5% 0.131 43.3)
- #007693
#007693
oklch(52.5% 0.098 222.8)
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 #A64C22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.016
- Cinnamon #AC4F06 ΔE 0.021
- Burnt Umber #A0450E ΔE 0.023
- Warm Brown #964E02 ΔE 0.038
- Burnt Siena #B75203 ΔE 0.041
- Russet #A13905 ΔE 0.041
- Sinopia #BB3E03 ΔE 0.043
- Sepia #985E2B ΔE 0.046
Use #A64C22 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.