#AC5555
Closest named color: Dusty Red (#B9484E). oklch(55.6% 0.114 21.4), rgb(172, 85, 85).
Aa
White text reads best on this color (5.01:1).
About this color
#AC5555 is a medium-dark, moderately saturated red. In OKLCH its lightness is 56%, its chroma 0.114 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Red (#B9484E), ΔE 0.032 away. White text reads best on it, at 5.01:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Dusty Red (#B9484E) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #AC5555 |
| RGB | rgb(172, 85, 85) |
| HSL | hsl(0, 34%, 50%) |
| OKLCH | oklch(55.6% 0.114 21.4) |
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 #AC5555 | 5.01:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #AC5555 | 4.18:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #AC5555 text on white | 5.01:1 | AA | Lc 74.3 | Content text, not long reading |
| #AC5555 text on black | 4.18:1 | AA large text | Lc -27.4 | 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 600.
-
Step 50
50
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F4E6E5
oklch(93.6% 0.015 22.4)
-
Step 200
200
#ECD2D1
oklch(88.5% 0.029 20.4)
-
Step 300
300
#E0B4B2
oklch(80.9% 0.051 21.3)
-
Step 400
400
#CF8C8A
oklch(70.7% 0.082 21.2)
-
Step 500
500
#C16E6D
oklch(63% 0.106 21.2)
-
Step 600
600 (this color)
#AC5555
oklch(55.6% 0.114 21.4)
-
Step 700
700
#944545
oklch(49.2% 0.107 21.8)
-
Step 800
800
#783939
oklch(42.7% 0.088 21.5)
-
Step 900
900
#613231
oklch(37.8% 0.068 22.1)
-
Step 950
950
#391D1D
oklch(26.9% 0.044 20.4)
#AC5555 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) | #686454 | 0.122 |
| Deuteranopia (no green cones) | #7E7653 | 0.113 |
| Tritanopia (no blue cones) | #BB4856 | 0.036 |
| Achromatopsia (no color) | #6F6F6F | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC5555
#AC5555
oklch(55.6% 0.114 21.4)
- #00838A
#00838A
oklch(55.5% 0.094 201.4)
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 #AC5555, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Red #B9484E ΔE 0.032
- Dark Rose #B5485D ΔE 0.036
- Light Maroon #A24857 ΔE 0.040
- Dull Red #BB3F3F ΔE 0.048
- Light Burgundy #A8415B ΔE 0.050
- Sienna #A0522D ΔE 0.055
- Earth #A2653E ΔE 0.059
- Clay #B66A50 ΔE 0.060
Use #AC5555 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.