#A6551B
Closest named color: Cinnamon (#AC4F06). oklch(53.9% 0.126 51.2), rgb(166, 85, 27).
Aa
White text reads best on this color (5.33:1).
About this color
#A6551B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 54%, its chroma 0.126 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Cinnamon (#AC4F06), ΔE 0.016 away. White text reads best on it, at 5.33:1.
| Hue family | Browns |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Cinnamon (#AC4F06) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #A6551B |
| RGB | rgb(166, 85, 27) |
| HSL | hsl(25, 72%, 38%) |
| OKLCH | oklch(53.9% 0.126 51.2) |
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 #A6551B | 5.33:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #A6551B | 3.93:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #A6551B text on white | 5.33:1 | AA | Lc 76.1 | Fine for body text |
| #A6551B text on black | 3.93:1 | AA large text | Lc -25.7 | 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
#F3E7E0
oklch(93.6% 0.016 52.6)
-
Step 200
200
#EBD4C7
oklch(88.5% 0.031 51.5)
-
Step 300
300
#DFB7A0
oklch(80.9% 0.056 51.5)
-
Step 400
400
#CE906C
oklch(70.6% 0.09 50.9)
-
Step 500
500
#C07343
oklch(63% 0.116 51.2)
-
Step 600
600 (this color)
#A6551B
oklch(53.9% 0.126 51.2)
-
Step 700
700
#934A13
oklch(49.1% 0.117 51.8)
-
Step 800
800
#783D14
oklch(42.8% 0.097 51.2)
-
Step 900
900
#613418
oklch(37.7% 0.076 50.4)
-
Step 950
950
#391F0F
oklch(27% 0.048 51.1)
#A6551B 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) | #6D6011 | 0.107 |
| Deuteranopia (no green cones) | #807219 | 0.097 |
| Tritanopia (no blue cones) | #B6434A | 0.077 |
| Achromatopsia (no color) | #6B6B6B | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A6551B
#A6551B
oklch(53.9% 0.126 51.2)
- #0078A2
#0078A2
oklch(53.8% 0.109 231.7)
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 #A6551B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cinnamon #AC4F06 ΔE 0.016
- Sienna #A0522D ΔE 0.021
- Raw Umber #A75E09 ΔE 0.026
- Sepia #985E2B ΔE 0.030
- Burnt Siena #B75203 ΔE 0.032
- Orangey Brown #B16002 ΔE 0.038
- Warm Brown #964E02 ΔE 0.039
- Burnt Umber #A0450E ΔE 0.039
Use #A6551B 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.