#901665
Closest named color: Red Violet (#9E0168). oklch(44.3% 0.171 347.2), rgb(144, 22, 101).
Aa
White text reads best on this color (8.43:1).
About this color
#901665 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.171 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.029 away. White text reads best on it, at 8.43:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #901665 |
| RGB | rgb(144, 22, 101) |
| HSL | hsl(321, 73%, 33%) |
| OKLCH | oklch(44.3% 0.171 347.2) |
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 #901665 | 8.43:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #901665 | 2.48:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #901665 text on white | 8.43:1 | AAA | Lc 87.6 | Fine for body text |
| #901665 text on black | 2.48:1 | Fails | Lc -14.6 | Not readable |
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 800.
-
Step 50
50
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#F9E3ED
oklch(93.6% 0.027 348.3)
-
Step 200
200
#F6CBE0
oklch(88.5% 0.055 347.3)
-
Step 300
300
#F1A6CD
oklch(80.9% 0.101 347.1)
-
Step 400
400
#E673B3
oklch(70.7% 0.159 347.4)
-
Step 500
500
#DB46A1
oklch(63.1% 0.205 347)
-
Step 600
600
#C6198B
oklch(55.6% 0.222 347.3)
-
Step 700
700
#AB0176
oklch(49.2% 0.207 347.5)
-
Step 800
800 (this color)
#901665
oklch(44.3% 0.171 347.2)
-
Step 900
900
#70184F
oklch(37.8% 0.134 347.2)
-
Step 950
950
#42112E
oklch(27.1% 0.084 347.6)
#901665 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) | #2B4067 | 0.193 |
| Deuteranopia (no green cones) | #505462 | 0.166 |
| Tritanopia (no blue cones) | #9B0F3D | 0.069 |
| Achromatopsia (no color) | #4D4D4D | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901665
#901665
oklch(44.3% 0.171 347.2)
- #006349
#006349
oklch(44.4% 0.091 167.3)
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 #901665, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.029
- Dark Fuchsia #9D0759 ΔE 0.034
- Deep Magenta #A0025C ΔE 0.036
- Mulberry #920A4E ΔE 0.037
- Berry #990F4B ΔE 0.047
- Violet Red #A50055 ΔE 0.051
- Purple Red #990147 ΔE 0.052
- Red Purple #820747 ΔE 0.057
Use #901665 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.