#AC4331
Closest named color: Dull Red (#BB3F3F). oklch(52.3% 0.142 31.9), rgb(172, 67, 49).
Aa
White text reads best on this color (5.83:1).
About this color
#AC4331 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.142 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.035 away. White text reads best on it, at 5.83:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.60:1 |
| White text | 5.83:1 |
Values
| HEX | #AC4331 |
| RGB | rgb(172, 67, 49) |
| HSL | hsl(9, 56%, 43%) |
| OKLCH | oklch(52.3% 0.142 31.9) |
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 #AC4331 | 5.83:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #AC4331 | 3.60:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #AC4331 text on white | 5.83:1 | AA | Lc 78.4 | Fine for body text |
| #AC4331 text on black | 3.60:1 | AA large text | Lc -23.4 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F1D1CA
oklch(88.6% 0.037 32.4)
-
Step 300
300
#E9B1A5
oklch(80.9% 0.068 32.3)
-
Step 400
400
#DC8675
oklch(70.7% 0.109 32)
-
Step 500
500
#D06551
oklch(63.1% 0.14 32.1)
-
Step 600
600
#BC4935
oklch(55.7% 0.153 32)
-
Step 700
700 (this color)
#AC4331
oklch(52.3% 0.142 31.9)
-
Step 800
800
#833022
oklch(42.7% 0.118 31.8)
-
Step 900
900
#6A2C21
oklch(37.8% 0.092 31.9)
-
Step 950
950
#3E1A14
oklch(26.9% 0.058 31)
#AC4331 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) | #5F572F | 0.147 |
| Deuteranopia (no green cones) | #796E2E | 0.135 |
| Tritanopia (no blue cones) | #BD2B3F | 0.053 |
| Achromatopsia (no color) | #656565 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4331
#AC4331
oklch(52.3% 0.142 31.9)
- #007788
#007788
oklch(52.2% 0.091 212)
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 #AC4331, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.035
- Rusty Red #AF2F0D ΔE 0.036
- Sinopia #BB3E03 ΔE 0.038
- Brick #A03623 ΔE 0.039
- Burnt Umber #A0450E ΔE 0.039
- Sienna #A0522D ΔE 0.039
- Russet #A13905 ΔE 0.042
- Dusty Red #B9484E ΔE 0.044
Use #AC4331 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.