#AC4837
Closest named color: Dull Red (#BB3F3F). oklch(53% 0.135 31.6), rgb(172, 72, 55).
Aa
White text reads best on this color (5.62:1).
About this color
#AC4837 is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.135 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.034 away. White text reads best on it, at 5.62:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #AC4837 |
| RGB | rgb(172, 72, 55) |
| HSL | hsl(9, 52%, 45%) |
| OKLCH | oklch(53% 0.135 31.6) |
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 #AC4837 | 5.62:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #AC4837 | 3.73:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #AC4837 text on white | 5.62:1 | AA | Lc 77.4 | Fine for body text |
| #AC4837 text on black | 3.73:1 | AA large text | Lc -24.3 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EFD2CC
oklch(88.6% 0.034 31.6)
-
Step 300
300
#E5B3A9
oklch(80.9% 0.06 31.4)
-
Step 400
400
#D68A7B
oklch(70.8% 0.096 31.8)
-
Step 500
500
#C96A59
oklch(63% 0.124 31.4)
-
Step 600
600 (this color)
#AC4837
oklch(53% 0.135 31.6)
-
Step 700
700
#9B4030
oklch(49.1% 0.125 31.9)
-
Step 800
800
#7E3529
oklch(42.7% 0.104 31.3)
-
Step 900
900
#662F25
oklch(37.7% 0.082 31.8)
-
Step 950
950
#3C1C16
oklch(27% 0.052 31.8)
#AC4837 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) | #625A35 | 0.139 |
| Deuteranopia (no green cones) | #7B7034 | 0.129 |
| Tritanopia (no blue cones) | #BD3344 | 0.052 |
| Achromatopsia (no color) | #676767 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4837
#AC4837
oklch(53% 0.135 31.6)
- #007A8B
#007A8B
oklch(53.2% 0.092 211.6)
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 #AC4837, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.034
- Sienna #A0522D ΔE 0.035
- Dusty Red #B9484E ΔE 0.039
- Sinopia #BB3E03 ΔE 0.041
- Burnt Umber #A0450E ΔE 0.043
- Cinnamon #AC4F06 ΔE 0.043
- Rusty Red #AF2F0D ΔE 0.046
- Light Maroon #A24857 ΔE 0.047
Use #AC4837 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.