#AC3616
Closest named color: Rusty Red (#AF2F0D). oklch(50.4% 0.16 35.3), rgb(172, 54, 22).
Aa
White text reads best on this color (6.37:1).
About this color
#AC3616 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.160 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.011 away. White text reads best on it, at 6.37:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #AC3616 |
| RGB | rgb(172, 54, 22) |
| HSL | hsl(13, 77%, 38%) |
| OKLCH | oklch(50.4% 0.16 35.3) |
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 #AC3616 | 6.37:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #AC3616 | 3.29:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #AC3616 text on white | 6.37:1 | AA | Lc 80.6 | Fine for body text |
| #AC3616 text on black | 3.29:1 | AA large text | Lc -21.2 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F4D0C6
oklch(88.5% 0.043 36)
-
Step 300
300
#EEAF9F
oklch(80.9% 0.078 34.7)
-
Step 400
400
#E2836A
oklch(70.7% 0.123 35.6)
-
Step 500
500
#D75F41
oklch(63% 0.158 35.2)
-
Step 600
600
#C3411F
oklch(55.6% 0.172 35.2)
-
Step 700
700 (this color)
#AC3616
oklch(50.4% 0.16 35.3)
-
Step 800
800
#882B12
oklch(42.7% 0.132 35.4)
-
Step 900
900
#6E2817
oklch(37.7% 0.104 34.9)
-
Step 950
950
#41190F
oklch(27.2% 0.065 35.2)
#AC3616 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) | #594E10 | 0.164 |
| Deuteranopia (no green cones) | #76690E | 0.150 |
| Tritanopia (no blue cones) | #BE0A30 | 0.062 |
| Achromatopsia (no color) | #5F5F5F | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC3616
#AC3616
oklch(50.4% 0.16 35.3)
- #007184
#007184
oklch(50.5% 0.089 214.7)
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 #AC3616, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.011
- Rust Red #AA2704 ΔE 0.023
- Russet #A13905 ΔE 0.025
- Brick #A03623 ΔE 0.026
- Rufous #AE2012 ΔE 0.030
- Firebrick #B22222 ΔE 0.033
- Brown #A52A2A ΔE 0.036
- Burnt Umber #A0450E ΔE 0.036
Use #AC3616 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.