#AC4231
Closest named color: Dull Red (#BB3F3F). oklch(52.1% 0.143 31.4), rgb(172, 66, 49).
Aa
White text reads best on this color (5.86:1).
About this color
#AC4231 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.143 and its hue 31°. 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 5.86:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.57:1 |
| White text | 5.86:1 |
Values
| HEX | #AC4231 |
| RGB | rgb(172, 66, 49) |
| HSL | hsl(8, 56%, 43%) |
| OKLCH | oklch(52.1% 0.143 31.4) |
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 #AC4231 | 5.86:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #AC4231 | 3.57:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #AC4231 text on white | 5.86:1 | AA | Lc 78.6 | Fine for body text |
| #AC4231 text on black | 3.57:1 | AA large text | Lc -23.2 | 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
#F1D0CA
oklch(88.4% 0.038 30)
-
Step 300
300
#EAB1A5
oklch(81% 0.069 32.1)
-
Step 400
400
#DD8675
oklch(70.8% 0.111 31.8)
-
Step 500
500
#D16452
oklch(63.1% 0.142 31)
-
Step 600
600
#BC4836
oklch(55.6% 0.153 31.2)
-
Step 700
700 (this color)
#AC4231
oklch(52.1% 0.143 31.4)
-
Step 800
800
#833022
oklch(42.7% 0.118 31.8)
-
Step 900
900
#6A2B21
oklch(37.6% 0.093 31)
-
Step 950
950
#3E1A14
oklch(26.9% 0.058 31)
#AC4231 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) | #5F562F | 0.147 |
| Deuteranopia (no green cones) | #796D2E | 0.135 |
| Tritanopia (no blue cones) | #BD2A3F | 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°).
- #AC4231
#AC4231
oklch(52.1% 0.143 31.4)
- #007787
#007787
oklch(52.2% 0.091 211)
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 #AC4231, 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 0.035
- Brick #A03623 ΔE 0.037
- Sinopia #BB3E03 ΔE 0.038
- Burnt Umber #A0450E ΔE 0.039
- Sienna #A0522D ΔE 0.041
- Russet #A13905 ΔE 0.041
- Dusty Red #B9484E ΔE 0.044
Use #AC4231 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.