#AC3C30
Closest named color: Rusty Red (#AF2F0D). oklch(51.3% 0.149 29.3), rgb(172, 60, 48).
Aa
White text reads best on this color (6.09:1).
About this color
#AC3C30 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.149 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.028 away. White text reads best on it, at 6.09:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #AC3C30 |
| RGB | rgb(172, 60, 48) |
| HSL | hsl(6, 56%, 43%) |
| OKLCH | oklch(51.3% 0.149 29.3) |
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 #AC3C30 | 6.09:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #AC3C30 | 3.44:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #AC3C30 text on white | 6.09:1 | AA | Lc 79.6 | Fine for body text |
| #AC3C30 text on black | 3.44:1 | AA large text | Lc -22.3 | 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 700.
-
Step 50
50
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F3D0CA
oklch(88.6% 0.04 29.4)
-
Step 300
300
#ECB0A6
oklch(81% 0.072 29.4)
-
Step 400
400
#DF8476
oklch(70.7% 0.115 29.6)
-
Step 500
500
#D46153
oklch(63.1% 0.148 29)
-
Step 600
600
#BF4437
oklch(55.6% 0.16 29.2)
-
Step 700
700 (this color)
#AC3C30
oklch(51.3% 0.149 29.3)
-
Step 800
800
#862D23
oklch(42.8% 0.124 29.5)
-
Step 900
900
#6C2A22
oklch(37.8% 0.096 29.3)
-
Step 950
950
#3F1914
oklch(26.9% 0.061 29.3)
#AC3C30 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) | #5B532E | 0.156 |
| Deuteranopia (no green cones) | #776B2C | 0.143 |
| Tritanopia (no blue cones) | #BD203A | 0.050 |
| Achromatopsia (no color) | #626262 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC3C30
#AC3C30
oklch(51.3% 0.149 29.3)
- #007582
#007582
oklch(51.5% 0.089 208.3)
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 #AC3C30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.028
- Brick #A03623 ΔE 0.031
- Dull Red #BB3F3F ΔE 0.036
- Firebrick #B22222 ΔE 0.036
- Brown #A52A2A ΔE 0.036
- Russet #A13905 ΔE 0.039
- Rust Red #AA2704 ΔE 0.039
- Rufous #AE2012 ΔE 0.040
Use #AC3C30 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.