#AC4329
Closest named color: Burnt Umber (#A0450E). oklch(52.2% 0.144 35.1), rgb(172, 67, 41).
Aa
White text reads best on this color (5.85:1).
About this color
#AC4329 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.144 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.033 away. White text reads best on it, at 5.85:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #AC4329 |
| RGB | rgb(172, 67, 41) |
| HSL | hsl(12, 62%, 42%) |
| OKLCH | oklch(52.2% 0.144 35.1) |
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 #AC4329 | 5.85:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #AC4329 | 3.58:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #AC4329 text on white | 5.85:1 | AA | Lc 78.5 | Fine for body text |
| #AC4329 text on black | 3.58:1 | AA large text | Lc -23.3 | 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 700.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5E1
oklch(93.5% 0.021 32.5)
-
Step 200
200
#F1D1C8
oklch(88.5% 0.038 36.2)
-
Step 300
300
#EAB1A3
oklch(80.9% 0.07 34.2)
-
Step 400
400
#DC8670
oklch(70.6% 0.111 35.2)
-
Step 500
500
#D1654B
oklch(63.1% 0.143 34.7)
-
Step 600
600
#BC492D
oklch(55.6% 0.155 34.9)
-
Step 700
700 (this color)
#AC4329
oklch(52.2% 0.144 35.1)
-
Step 800
800
#83311C
oklch(42.7% 0.118 35.4)
-
Step 900
900
#6A2C1D
oklch(37.7% 0.093 34.9)
-
Step 950
950
#3E1A12
oklch(26.9% 0.059 33.8)
#AC4329 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) | #605626 | 0.145 |
| Deuteranopia (no green cones) | #7A6D26 | 0.132 |
| Tritanopia (no blue cones) | #BD2A3E | 0.059 |
| Achromatopsia (no color) | #656565 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4329
#AC4329
oklch(52.2% 0.144 35.1)
- #00768A
#00768A
oklch(52.1% 0.092 214.9)
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 #AC4329, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.033
- Sinopia #BB3E03 ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.033
- Sienna #A0522D ΔE 0.036
- Russet #A13905 ΔE 0.037
- Brick #A03623 ΔE 0.038
- Cinnamon #AC4F06 ΔE 0.038
- Dull Red #BB3F3F ΔE 0.040
Use #AC4329 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.