#AC282B
Closest named color: Firebrick (#B22222). oklch(49.2% 0.168 24.9), rgb(172, 40, 43).
Aa
White text reads best on this color (6.79:1).
About this color
#AC282B is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.168 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.014 away. White text reads best on it, at 6.79:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.09:1 |
| White text | 6.79:1 |
Values
| HEX | #AC282B |
| RGB | rgb(172, 40, 43) |
| HSL | hsl(359, 62%, 42%) |
| OKLCH | oklch(49.2% 0.168 24.9) |
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 #AC282B | 6.79:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #AC282B | 3.09:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #AC282B text on white | 6.79:1 | AA | Lc 82.0 | Fine for body text |
| #AC282B text on black | 3.09:1 | AA large text | Lc -19.9 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E2
oklch(93.5% 0.023 24.1)
-
Step 200
200
#F6CECA
oklch(88.4% 0.046 24.8)
-
Step 300
300
#F1ADA6
oklch(81% 0.081 25.6)
-
Step 400
400
#E77E77
oklch(70.8% 0.131 24.9)
-
Step 500
500
#DC5854
oklch(63.1% 0.167 24.8)
-
Step 600
600
#C73738
oklch(55.5% 0.181 25)
-
Step 700
700 (this color)
#AC282B
oklch(49.2% 0.168 24.9)
-
Step 800
800
#8B2424
oklch(42.6% 0.139 25.3)
-
Step 900
900
#702422
oklch(37.7% 0.108 25.3)
-
Step 950
950
#421615
oklch(27% 0.069 24.1)
#AC282B 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) | #50492A | 0.182 |
| Deuteranopia (no green cones) | #716526 | 0.166 |
| Tritanopia (no blue cones) | #BE002B | 0.040 |
| Achromatopsia (no color) | #5B5B5B | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC282B
#AC282B
oklch(49.2% 0.168 24.9)
- #006E77
#006E77
oklch(49.1% 0.084 204.7)
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 #AC282B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.014
- Brown #A52A2A ΔE 0.014
- Rufous #AE2012 ΔE 0.020
- Rust Red #AA2704 ΔE 0.028
- Rusty Red #AF2F0D ΔE 0.030
- Brick #A03623 ΔE 0.032
- Rouge #AB1239 ΔE 0.034
- Scarlet #BE0119 ΔE 0.039
Use #AC282B 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.