#901B63
Closest named color: Dark Fuchsia (#9D0759). oklch(44.6% 0.165 348.5), rgb(144, 27, 99).
Aa
White text reads best on this color (8.32:1).
About this color
#901B63 is a dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.165 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Fuchsia (#9D0759), ΔE 0.031 away. White text reads best on it, at 8.32:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Dark Fuchsia (#9D0759) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #901B63 |
| RGB | rgb(144, 27, 99) |
| HSL | hsl(323, 68%, 34%) |
| OKLCH | oklch(44.6% 0.165 348.5) |
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 #901B63 | 8.32:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #901B63 | 2.52:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #901B63 text on white | 8.32:1 | AAA | Lc 87.4 | Fine for body text |
| #901B63 text on black | 2.52:1 | Fails | Lc -14.8 | 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
#F6CBDF
oklch(88.5% 0.055 348.6)
-
Step 300
300
#F0A7CB
oklch(80.9% 0.097 348.4)
-
Step 400
400
#E574B0
oklch(70.6% 0.155 348.7)
-
Step 500
500
#DA499D
oklch(63.1% 0.198 348.6)
-
Step 600
600
#C52088
oklch(55.6% 0.215 348.5)
-
Step 700
700
#AA0C73
oklch(49.2% 0.2 348.7)
-
Step 800
800 (this color)
#901B63
oklch(44.6% 0.165 348.5)
-
Step 900
900
#6F1A4D
oklch(37.7% 0.13 348.3)
-
Step 950
950
#41112D
oklch(26.9% 0.082 348)
#901B63 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) | #2F4165 | 0.186 |
| Deuteranopia (no green cones) | #525560 | 0.162 |
| Tritanopia (no blue cones) | #9B133D | 0.065 |
| Achromatopsia (no color) | #4E4E4E | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901B63
#901B63
oklch(44.6% 0.165 348.5)
- #00644B
#00644B
oklch(44.7% 0.09 168.3)
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 #901B63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Fuchsia #9D0759 ΔE 0.031
- Red Violet #9E0168 ΔE 0.031
- Mulberry #920A4E ΔE 0.034
- Deep Magenta #A0025C ΔE 0.035
- Berry #990F4B ΔE 0.043
- Purple Red #990147 ΔE 0.048
- Violet Red #A50055 ΔE 0.049
- Red Purple #820747 ΔE 0.055
Use #901B63 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.