#901C5B
Closest named color: Mulberry (#920A4E). oklch(44.3% 0.16 353), rgb(144, 28, 91).
Aa
White text reads best on this color (8.38:1).
About this color
#901C5B is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.160 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.023 away. White text reads best on it, at 8.38:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #901C5B |
| RGB | rgb(144, 28, 91) |
| HSL | hsl(327, 67%, 34%) |
| OKLCH | oklch(44.3% 0.16 353) |
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 #901C5B | 8.38:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #901C5B | 2.50:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #901C5B text on white | 8.38:1 | AAA | Lc 87.6 | Fine for body text |
| #901C5B text on black | 2.50:1 | Fails | Lc -14.5 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#F9E3EB
oklch(93.6% 0.026 353.5)
-
Step 200
200
#F6CCDC
oklch(88.6% 0.052 353.3)
-
Step 300
300
#F1A8C6
oklch(81% 0.093 353)
-
Step 400
400
#E675A9
oklch(70.7% 0.151 352.7)
-
Step 500
500
#DB4B93
oklch(63.1% 0.192 353.1)
-
Step 600
600
#C6247E
oklch(55.6% 0.208 352.9)
-
Step 700
700
#AB116A
oklch(49.2% 0.194 353.1)
-
Step 800
800 (this color)
#901C5B
oklch(44.3% 0.16 353)
-
Step 900
900
#701C47
oklch(37.8% 0.125 353.4)
-
Step 950
950
#42122A
oklch(27% 0.08 352.8)
#901C5B 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) | #33405D | 0.181 |
| Deuteranopia (no green cones) | #545558 | 0.160 |
| Tritanopia (no blue cones) | #9C0E39 | 0.058 |
| Achromatopsia (no color) | #4D4D4D | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901C5B
#901C5B
oklch(44.3% 0.16 353)
- #00624F
#00624F
oklch(44.2% 0.085 173.4)
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 #901C5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.023
- Dark Fuchsia #9D0759 ΔE 0.028
- Berry #990F4B ΔE 0.031
- Deep Magenta #A0025C ΔE 0.034
- Purple Red #990147 ΔE 0.037
- Red Violet #9E0168 ΔE 0.038
- Violet Red #A50055 ΔE 0.044
- Red Purple #820747 ΔE 0.048
Use #901C5B 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.