#A42B78
Closest named color: Red Violet (#9E0168). oklch(50.2% 0.174 346.2), rgb(164, 43, 120).
Aa
White text reads best on this color (6.57:1).
About this color
#A42B78 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.174 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.045 away. White text reads best on it, at 6.57:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #A42B78 |
| RGB | rgb(164, 43, 120) |
| HSL | hsl(322, 58%, 41%) |
| OKLCH | oklch(50.2% 0.174 346.2) |
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 #A42B78 | 6.57:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #A42B78 | 3.19:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #A42B78 text on white | 6.57:1 | AA | Lc 81.4 | Fine for body text |
| #A42B78 text on black | 3.19:1 | AA large text | Lc -20.5 | 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
#FCF3F7
oklch(97.2% 0.011 348.4)
-
Step 100
100
#F7E4ED
oklch(93.7% 0.024 347.2)
-
Step 200
200
#F1CDE0
oklch(88.4% 0.047 345)
-
Step 300
300
#E9ABCC
oklch(80.9% 0.084 345.9)
-
Step 400
400
#DC7CB2
oklch(70.7% 0.135 346.3)
-
Step 500
500
#CF569F
oklch(63% 0.173 346)
-
Step 600
600
#BB368A
oklch(55.7% 0.188 346.2)
-
Step 700
700 (this color)
#A42B78
oklch(50.2% 0.174 346.2)
-
Step 800
800
#82235F
oklch(42.7% 0.144 346.1)
-
Step 900
900
#69234E
oklch(37.7% 0.112 346)
-
Step 950
950
#3E162E
oklch(27.1% 0.071 345.8)
#A42B78 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) | #3B507A | 0.193 |
| Deuteranopia (no green cones) | #5F6575 | 0.170 |
| Tritanopia (no blue cones) | #AF284E | 0.071 |
| Achromatopsia (no color) | #5D5D5D | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A42B78
#A42B78
oklch(50.2% 0.174 346.2)
- #007656
#007656
oklch(50.2% 0.104 166.1)
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 #A42B78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.045
- Warm Purple #952E8F ΔE 0.049
- Deep Magenta #A0025C ΔE 0.053
- Dark Fuchsia #9D0759 ΔE 0.057
- Violet Red #A50055 ΔE 0.059
- Light Eggplant #894585 ΔE 0.065
- Medium Violet Red #C71585 ΔE 0.071
- Light Burgundy #A8415B ΔE 0.071
Use #A42B78 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.