#A3671D
Closest named color: Raw Umber (#A75E09). oklch(56.7% 0.114 66.2), rgb(163, 103, 29).
Aa
White text reads best on this color (4.65:1).
About this color
#A3671D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.114 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.021 away. White text reads best on it, at 4.65:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.51:1 |
| White text | 4.65:1 |
Values
| HEX | #A3671D |
| RGB | rgb(163, 103, 29) |
| HSL | hsl(33, 70%, 38%) |
| OKLCH | oklch(56.7% 0.114 66.2) |
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 #A3671D | 4.65:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #A3671D | 4.51:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #A3671D text on white | 4.65:1 | AA | Lc 72.0 | Content text, not long reading |
| #A3671D text on black | 4.51:1 | AA | Lc -29.7 | 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
#F9F5F1
oklch(97.2% 0.007 67.7)
-
Step 100
100
#F1E8E0
oklch(93.6% 0.015 64.3)
-
Step 200
200
#E7D6C6
oklch(88.6% 0.029 65.7)
-
Step 300
300
#D8BB9E
oklch(81% 0.052 67)
-
Step 400
400
#C49769
oklch(70.8% 0.082 66.5)
-
Step 500
500
#B47C3E
oklch(63.1% 0.105 66.6)
-
Step 600
600 (this color)
#A3671D
oklch(56.7% 0.114 66.2)
-
Step 700
700
#885207
oklch(49% 0.106 66.1)
-
Step 800
800
#6F440D
oklch(42.8% 0.088 66.4)
-
Step 900
900
#5A3915
oklch(37.6% 0.068 65.1)
-
Step 950
950
#35220E
oklch(27.1% 0.043 65.6)
#A3671D 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) | #7A6C10 | 0.074 |
| Deuteranopia (no green cones) | #897A1F | 0.065 |
| Tritanopia (no blue cones) | #B25959 | 0.088 |
| Achromatopsia (no color) | #747474 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3671D
#A3671D
oklch(56.7% 0.114 66.2)
- #347CB5
#347CB5
oklch(56.7% 0.114 245.7)
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 #A3671D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.021
- Raw Sienna #9A6200 ΔE 0.025
- Umber #B26400 ΔE 0.027
- Orangey Brown #B16002 ΔE 0.028
- Earth #A2653E ΔE 0.032
- Caramel #AF6F09 ΔE 0.033
- Sepia #985E2B ΔE 0.036
- Copper #B66325 ΔE 0.037
Use #A3671D 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.