#A55337
Closest named color: Sienna (#A0522D). oklch(53.7% 0.116 39.3), rgb(165, 83, 55).
Aa
White text reads best on this color (5.39:1).
About this color
#A55337 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.116 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.015 away. White text reads best on it, at 5.39:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #A55337 |
| RGB | rgb(165, 83, 55) |
| HSL | hsl(15, 50%, 43%) |
| OKLCH | oklch(53.7% 0.116 39.3) |
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 #A55337 | 5.39:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #A55337 | 3.89:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #A55337 text on white | 5.39:1 | AA | Lc 76.5 | Fine for body text |
| #A55337 text on black | 3.89:1 | AA large text | Lc -25.3 | 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
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EBD3CB
oklch(88.4% 0.029 39.3)
-
Step 300
300
#DFB6A8
oklch(80.9% 0.052 39.7)
-
Step 400
400
#CE8F7A
oklch(70.7% 0.083 39.2)
-
Step 500
500
#C07257
oklch(63.1% 0.107 39.8)
-
Step 600
600 (this color)
#A55337
oklch(53.7% 0.116 39.3)
-
Step 700
700
#93482F
oklch(49.1% 0.108 38.9)
-
Step 800
800
#773C27
oklch(42.7% 0.089 40)
-
Step 900
900
#613424
oklch(37.8% 0.07 40.2)
-
Step 950
950
#391F16
oklch(27.2% 0.044 39.8)
#A55337 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) | #695F34 | 0.111 |
| Deuteranopia (no green cones) | #7D7136 | 0.102 |
| Tritanopia (no blue cones) | #B4434C | 0.056 |
| Achromatopsia (no color) | #6A6A6A | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A55337
#A55337
oklch(53.7% 0.116 39.3)
- #007A94
#007A94
oklch(53.6% 0.097 219.6)
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 #A55337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.015
- Cinnamon #AC4F06 ΔE 0.033
- Sepia #985E2B ΔE 0.040
- Burnt Umber #A0450E ΔE 0.041
- Earth #A2653E ΔE 0.042
- Burnt Siena #B75203 ΔE 0.045
- Raw Umber #A75E09 ΔE 0.049
- Warm Brown #964E02 ΔE 0.050
Use #A55337 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.