#A81664
Closest named color: Deep Magenta (#A0025C). oklch(48.6% 0.187 355.3), rgb(168, 22, 100).
Aa
White text reads best on this color (7.08:1).
About this color
#A81664 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.187 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Magenta (#A0025C), ΔE 0.025 away. White text reads best on it, at 7.08:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Deep Magenta (#A0025C) |
| Black text | 2.96:1 |
| White text | 7.08:1 |
Values
| HEX | #A81664 |
| RGB | rgb(168, 22, 100) |
| HSL | hsl(328, 77%, 37%) |
| OKLCH | oklch(48.6% 0.187 355.3) |
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 #A81664 | 7.08:1 | AAA | Lc -87.9 | Fine for body text |
| Black text on #A81664 | 2.96:1 | Fails | Lc 21.2 | Dividers and decoration only |
| #A81664 text on white | 7.08:1 | AAA | Lc 82.8 | Fine for body text |
| #A81664 text on black | 2.96:1 | Fails | Lc -19.1 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#F9E3EA
oklch(93.6% 0.026 356.3)
-
Step 200
200
#F6CCDA
oklch(88.5% 0.051 356.2)
-
Step 300
300
#F0A9C3
oklch(81% 0.089 355.6)
-
Step 400
400
#E577A5
oklch(70.7% 0.145 355)
-
Step 500
500
#DA4E8E
oklch(63.1% 0.185 355.5)
-
Step 600
600
#C52979
oklch(55.6% 0.201 355.1)
-
Step 700
700 (this color)
#A81664
oklch(48.6% 0.187 355.3)
-
Step 800
800
#8A1953
oklch(42.7% 0.155 355.1)
-
Step 900
900
#6F1E44
oklch(37.7% 0.12 355.7)
-
Step 950
950
#411328
oklch(26.9% 0.076 355.1)
#A81664 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) | #3A4766 | 0.212 |
| Deuteranopia (no green cones) | #626261 | 0.187 |
| Tritanopia (no blue cones) | #B6003D | 0.065 |
| Achromatopsia (no color) | #585858 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A81664
#A81664
oklch(48.6% 0.187 355.3)
- #00705D
#00705D
oklch(48.7% 0.091 175.5)
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 #A81664, closest first.
No curated palette has a color within ΔE 0.04 of #A81664.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Magenta #A0025C ΔE 0.025
- Violet Red #A50055 ΔE 0.025
- Dark Fuchsia #9D0759 ΔE 0.031
- Red Violet #9E0168 ΔE 0.031
- Raspberry #B00149 ΔE 0.044
- Berry #990F4B ΔE 0.049
- Purple Red #990147 ΔE 0.055
- Mulberry #920A4E ΔE 0.058
Use #A81664 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.