#AC3D30
Closest named color: Rusty Red (#AF2F0D). oklch(51.5% 0.148 29.7), rgb(172, 61, 48).
Aa
White text reads best on this color (6.06:1).
About this color
#AC3D30 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.148 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.029 away. White text reads best on it, at 6.06:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #AC3D30 |
| RGB | rgb(172, 61, 48) |
| HSL | hsl(6, 56%, 43%) |
| OKLCH | oklch(51.5% 0.148 29.7) |
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 #AC3D30 | 6.06:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #AC3D30 | 3.46:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #AC3D30 text on white | 6.06:1 | AA | Lc 79.4 | Fine for body text |
| #AC3D30 text on black | 3.46:1 | AA large text | Lc -22.4 | 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 700.
-
Step 50
50
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F2D0CA
oklch(88.5% 0.039 29.7)
-
Step 300
300
#EBB0A6
oklch(80.9% 0.071 29.6)
-
Step 400
400
#DF8476
oklch(70.7% 0.115 29.6)
-
Step 500
500
#D36252
oklch(63.1% 0.146 29.9)
-
Step 600
600
#BF4537
oklch(55.7% 0.16 29.6)
-
Step 700
700 (this color)
#AC3D30
oklch(51.5% 0.148 29.7)
-
Step 800
800
#852D23
oklch(42.6% 0.123 29.5)
-
Step 900
900
#6B2A21
oklch(37.7% 0.095 30.1)
-
Step 950
950
#3F1914
oklch(26.9% 0.061 29.3)
#AC3D30 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) | #5C532E | 0.154 |
| Deuteranopia (no green cones) | #776B2D | 0.142 |
| Tritanopia (no blue cones) | #BD213B | 0.052 |
| Achromatopsia (no color) | #626262 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC3D30
#AC3D30
oklch(51.5% 0.148 29.7)
- #007583
#007583
oklch(51.5% 0.089 209.3)
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 #AC3D30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.029
- Brick #A03623 ΔE 0.032
- Dull Red #BB3F3F ΔE 0.035
- Firebrick #B22222 ΔE 0.037
- Brown #A52A2A ΔE 0.038
- Russet #A13905 ΔE 0.039
- Rust Red #AA2704 ΔE 0.041
- Sinopia #BB3E03 ΔE 0.041
Use #AC3D30 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.