#A64631
Closest named color: Sienna (#A0522D). oklch(51.7% 0.132 33.9), rgb(166, 70, 49).
Aa
White text reads best on this color (5.92:1).
About this color
#A64631 is a medium-dark, moderately saturated red. In OKLCH its lightness is 52%, its chroma 0.132 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.030 away. White text reads best on it, at 5.92:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #A64631 |
| RGB | rgb(166, 70, 49) |
| HSL | hsl(11, 54%, 42%) |
| OKLCH | oklch(51.7% 0.132 33.9) |
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 #A64631 | 5.92:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #A64631 | 3.54:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #A64631 text on white | 5.92:1 | AA | Lc 79.0 | Fine for body text |
| #A64631 text on black | 3.54:1 | AA large text | Lc -22.8 | 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 700.
-
Step 50
50
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#F0D1CA
oklch(88.5% 0.036 32.8)
-
Step 300
300
#E7B2A6
oklch(80.9% 0.065 33)
-
Step 400
400
#D88976
oklch(70.7% 0.101 34.2)
-
Step 500
500
#CC6953
oklch(63.2% 0.13 33.7)
-
Step 600
600
#B74E37
oklch(55.6% 0.142 33.9)
-
Step 700
700 (this color)
#A64631
oklch(51.7% 0.132 33.9)
-
Step 800
800
#803423
oklch(42.7% 0.11 34.1)
-
Step 900
900
#672E22
oklch(37.7% 0.085 33.3)
-
Step 950
950
#3D1C14
oklch(27.1% 0.054 34.7)
#A64631 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) | #60572F | 0.133 |
| Deuteranopia (no green cones) | #776C2F | 0.123 |
| Tritanopia (no blue cones) | #B63241 | 0.053 |
| Achromatopsia (no color) | #646464 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A64631
#A64631
oklch(51.7% 0.132 33.9)
- #007588
#007588
oklch(51.7% 0.091 214.1)
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 #A64631, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.030
- Burnt Umber #A0450E ΔE 0.031
- Brick #A03623 ΔE 0.036
- Russet #A13905 ΔE 0.038
- Rusty Red #AF2F0D ΔE 0.041
- Cinnamon #AC4F06 ΔE 0.042
- Sinopia #BB3E03 ΔE 0.046
- Dull Red #BB3F3F ΔE 0.046
Use #A64631 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.