#901B4F
Closest named color: Mulberry (#920A4E). oklch(43.8% 0.156 359.6), rgb(144, 27, 79).
Aa
White text reads best on this color (8.55:1).
About this color
#901B4F is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.156 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.014 away. White text reads best on it, at 8.55:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.45:1 |
| White text | 8.55:1 |
Values
| HEX | #901B4F |
| RGB | rgb(144, 27, 79) |
| HSL | hsl(333, 68%, 34%) |
| OKLCH | oklch(43.8% 0.156 359.6) |
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 #901B4F | 8.55:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #901B4F | 2.45:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #901B4F text on white | 8.55:1 | AAA | Lc 88.0 | Fine for body text |
| #901B4F text on black | 2.45:1 | Fails | Lc -14.1 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E9
oklch(93.6% 0.026 359.9)
-
Step 200
200
#F7CCD8
oklch(88.6% 0.051 359.6)
-
Step 300
300
#F2A8BE
oklch(80.9% 0.091 359.9)
-
Step 400
400
#E8769D
oklch(70.7% 0.146 359.8)
-
Step 500
500
#DD4C86
oklch(63.1% 0.187 359.3)
-
Step 600
600
#C8256F
oklch(55.5% 0.203 359.6)
-
Step 700
700
#AD135D
oklch(49.1% 0.189 359.7)
-
Step 800
800 (this color)
#901B4F
oklch(43.8% 0.156 359.6)
-
Step 900
900
#711C3F
oklch(37.7% 0.122 359.9)
-
Step 950
950
#431225
oklch(27% 0.078 359.8)
#901B4F 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) | #373E50 | 0.176 |
| Deuteranopia (no green cones) | #56544C | 0.158 |
| Tritanopia (no blue cones) | #9D0033 | 0.048 |
| Achromatopsia (no color) | #4C4C4C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901B4F
#901B4F
oklch(43.8% 0.156 359.6)
- #006053
#006053
oklch(43.8% 0.08 179.3)
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 #901B4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.014
- Berry #990F4B ΔE 0.020
- Purple Red #990147 ΔE 0.024
- Dark Fuchsia #9D0759 ΔE 0.033
- Deep Magenta #A0025C ΔE 0.041
- Red Purple #820747 ΔE 0.041
- Cranberry #9E003A ΔE 0.042
- Red Wine #8C0034 ΔE 0.043
Use #901B4F 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.