#A64C2D
Closest named color: Sienna (#A0522D). oklch(52.6% 0.127 39.2), rgb(166, 76, 45).
Aa
White text reads best on this color (5.68:1).
About this color
#A64C2D is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.127 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.017 away. White text reads best on it, at 5.68:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.127) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.69:1 |
| White text | 5.68:1 |
Values
| HEX | #A64C2D |
| RGB | rgb(166, 76, 45) |
| HSL | hsl(15, 57%, 41%) |
| OKLCH | oklch(52.6% 0.127 39.2) |
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 #A64C2D | 5.68:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #A64C2D | 3.69:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #A64C2D text on white | 5.68:1 | AA | Lc 77.9 | Fine for body text |
| #A64C2D text on black | 3.69:1 | AA large text | Lc -23.9 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E6E2
oklch(93.5% 0.016 36.5)
-
Step 200
200
#EDD3CA
oklch(88.6% 0.032 40.1)
-
Step 300
300
#E2B5A6
oklch(80.9% 0.057 39.2)
-
Step 400
400
#D28D76
oklch(70.7% 0.091 39.2)
-
Step 500
500
#C56F52
oklch(63.2% 0.117 39.3)
-
Step 600
600 (this color)
#A64C2D
oklch(52.6% 0.127 39.2)
-
Step 700
700
#974528
oklch(49.1% 0.118 39.5)
-
Step 800
800
#7B3923
oklch(42.7% 0.098 38.8)
-
Step 900
900
#633221
oklch(37.7% 0.076 39.7)
-
Step 950
950
#3A1E14
oklch(27.1% 0.047 40.3)
#A64C2D 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) | #645A29 | 0.124 |
| Deuteranopia (no green cones) | #7A6E2B | 0.113 |
| Tritanopia (no blue cones) | #B63945 | 0.060 |
| Achromatopsia (no color) | #676767 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A64C2D
#A64C2D
oklch(52.6% 0.127 39.2)
- #007790
#007790
oklch(52.6% 0.095 219.3)
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 #A64C2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.017
- Burnt Umber #A0450E ΔE 0.028
- Cinnamon #AC4F06 ΔE 0.029
- Russet #A13905 ΔE 0.044
- Sinopia #BB3E03 ΔE 0.045
- Warm Brown #964E02 ΔE 0.045
- Burnt Siena #B75203 ΔE 0.045
- Brick #A03623 ΔE 0.048
Use #A64C2D 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.