#A3105B
Closest named color: Violet Red (#A50055). oklch(47.1% 0.183 357.8), rgb(163, 16, 91).
Aa
White text reads best on this color (7.54:1).
About this color
#A3105B is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.183 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Violet Red (#A50055), ΔE 0.011 away. White text reads best on it, at 7.54:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Violet Red (#A50055) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #A3105B |
| RGB | rgb(163, 16, 91) |
| HSL | hsl(329, 82%, 35%) |
| OKLCH | oklch(47.1% 0.183 357.8) |
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 #A3105B | 7.54:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #A3105B | 2.78:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #A3105B text on white | 7.54:1 | AAA | Lc 84.3 | Fine for body text |
| #A3105B text on black | 2.78:1 | Fails | Lc -17.6 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#F9E3EA
oklch(93.6% 0.026 356.3)
-
Step 200
200
#F6CCD9
oklch(88.5% 0.05 357.6)
-
Step 300
300
#F0A9C0
oklch(80.9% 0.088 358.2)
-
Step 400
400
#E578A0
oklch(70.7% 0.141 358)
-
Step 500
500
#DA4F89
oklch(63% 0.181 357.8)
-
Step 600
600
#C52B73
oklch(55.5% 0.197 357.8)
-
Step 700
700 (this color)
#A3105B
oklch(47.1% 0.183 357.8)
-
Step 800
800
#8A1B4F
oklch(42.7% 0.151 357.7)
-
Step 900
900
#6F1E42
oklch(37.7% 0.119 357.2)
-
Step 950
950
#421326
oklch(27% 0.076 358.4)
#A3105B 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) | #38435D | 0.209 |
| Deuteranopia (no green cones) | #5F5E58 | 0.186 |
| Tritanopia (no blue cones) | #B10036 | 0.063 |
| Achromatopsia (no color) | #545454 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3105B
#A3105B
oklch(47.1% 0.183 357.8)
- #006B5B
#006B5B
oklch(47.2% 0.087 177.6)
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 #A3105B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Violet Red #A50055 ΔE 0.011
- Deep Magenta #A0025C ΔE 0.013
- Dark Fuchsia #9D0759 ΔE 0.016
- Red Violet #9E0168 ΔE 0.030
- Berry #990F4B ΔE 0.032
- Purple Red #990147 ΔE 0.037
- Raspberry #B00149 ΔE 0.039
- Mulberry #920A4E ΔE 0.041
Use #A3105B 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.