#AC4940
Closest named color: Dull Red (#BB3F3F). oklch(53.3% 0.132 27.6), rgb(172, 73, 64).
Aa
White text reads best on this color (5.55:1).
About this color
#AC4940 is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.132 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.031 away. White text reads best on it, at 5.55:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.78:1 |
| White text | 5.55:1 |
Values
| HEX | #AC4940 |
| RGB | rgb(172, 73, 64) |
| HSL | hsl(5, 46%, 46%) |
| OKLCH | oklch(53.3% 0.132 27.6) |
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 #AC4940 | 5.55:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #AC4940 | 3.78:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #AC4940 text on white | 5.55:1 | AA | Lc 77.1 | Fine for body text |
| #AC4940 text on black | 3.78:1 | AA large text | Lc -24.6 | 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
#F5E6E4
oklch(93.6% 0.017 26.7)
-
Step 200
200
#EED1CD
oklch(88.4% 0.033 27.1)
-
Step 300
300
#E5B3AC
oklch(81% 0.059 27.6)
-
Step 400
400
#D58980
oklch(70.6% 0.095 27.1)
-
Step 500
500
#C86A60
oklch(63% 0.121 27.3)
-
Step 600
600 (this color)
#AC4940
oklch(53.3% 0.132 27.6)
-
Step 700
700
#9A4038
oklch(49.1% 0.122 27.5)
-
Step 800
800
#7D352F
oklch(42.6% 0.102 27)
-
Step 900
900
#652F29
oklch(37.6% 0.079 27.9)
-
Step 950
950
#3B1C19
oklch(26.9% 0.049 26.6)
#AC4940 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) | #625B3F | 0.138 |
| Deuteranopia (no green cones) | #7B703E | 0.127 |
| Tritanopia (no blue cones) | #BC3647 | 0.045 |
| Achromatopsia (no color) | #686868 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4940
#AC4940
oklch(53.3% 0.132 27.6)
- #007B88
#007B88
oklch(53.3% 0.092 207.7)
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 #AC4940, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.031
- Dusty Red #B9484E ΔE 0.032
- Light Maroon #A24857 ΔE 0.038
- Sienna #A0522D ΔE 0.041
- Dark Rose #B5485D ΔE 0.044
- Light Burgundy #A8415B ΔE 0.048
- Sinopia #BB3E03 ΔE 0.049
- Burnt Umber #A0450E ΔE 0.052
Use #AC4940 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.