#901F56
Closest named color: Mulberry (#920A4E). oklch(44.4% 0.155 356.2), rgb(144, 31, 86).
Aa
White text reads best on this color (8.34:1).
About this color
#901F56 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.155 and its hue 356°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.020 away. White text reads best on it, at 8.34:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.51:1 |
| White text | 8.34:1 |
Values
| HEX | #901F56 |
| RGB | rgb(144, 31, 86) |
| HSL | hsl(331, 65%, 34%) |
| OKLCH | oklch(44.4% 0.155 356.2) |
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 #901F56 | 8.34:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #901F56 | 2.51:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #901F56 text on white | 8.34:1 | AAA | Lc 87.5 | Fine for body text |
| #901F56 text on black | 2.51:1 | 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
#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
#F1A8C2
oklch(80.9% 0.092 356.3)
-
Step 400
400
#E677A3
oklch(70.8% 0.145 356.4)
-
Step 500
500
#DB4E8D
oklch(63.2% 0.185 356.1)
-
Step 600
600
#C62877
oklch(55.6% 0.202 356.1)
-
Step 700
700
#AA1764
oklch(49% 0.187 355.9)
-
Step 800
800 (this color)
#901F56
oklch(44.4% 0.155 356.2)
-
Step 900
900
#6F1D43
oklch(37.6% 0.12 356.2)
-
Step 950
950
#421327
oklch(27.1% 0.076 357.1)
#901F56 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) | #374057 | 0.174 |
| Deuteranopia (no green cones) | #565553 | 0.155 |
| Tritanopia (no blue cones) | #9C0F38 | 0.051 |
| Achromatopsia (no color) | #4E4E4E | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901F56
#901F56
oklch(44.4% 0.155 356.2)
- #006252
#006252
oklch(44.3% 0.083 176.4)
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 #901F56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.020
- Berry #990F4B ΔE 0.025
- Dark Fuchsia #9D0759 ΔE 0.030
- Purple Red #990147 ΔE 0.032
- Deep Magenta #A0025C ΔE 0.037
- Violet Red #A50055 ΔE 0.043
- Red Violet #9E0168 ΔE 0.046
- Red Purple #820747 ΔE 0.046
Use #901F56 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.