#901550
Closest named color: Mulberry (#920A4E). oklch(43.4% 0.162 358.3), rgb(144, 21, 80).
Aa
White text reads best on this color (8.71:1).
About this color
#901550 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.162 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.008 away. White text reads best on it, at 8.71:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #901550 |
| RGB | rgb(144, 21, 80) |
| HSL | hsl(331, 75%, 32%) |
| OKLCH | oklch(43.4% 0.162 358.3) |
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 #901550 | 8.71:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #901550 | 2.40:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #901550 text on white | 8.71:1 | AAA | Lc 88.3 | Fine for body text |
| #901550 text on black | 2.40:1 | Fails | Lc -13.9 | 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
#F8CBD9
oklch(88.5% 0.054 357.7)
-
Step 300
300
#F3A7C0
oklch(80.8% 0.094 358.1)
-
Step 400
400
#E974A0
oklch(70.6% 0.151 357.9)
-
Step 500
500
#DF4988
oklch(63.1% 0.193 358.4)
-
Step 600
600
#CA1E72
oklch(55.6% 0.21 358.3)
-
Step 700
700
#AE095F
oklch(49% 0.195 358.5)
-
Step 800
800 (this color)
#901550
oklch(43.4% 0.162 358.3)
-
Step 900
900
#721A41
oklch(37.7% 0.126 358.3)
-
Step 950
950
#431126
oklch(26.9% 0.08 358.1)
#901550 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) | #343C51 | 0.183 |
| Deuteranopia (no green cones) | #55534D | 0.163 |
| Tritanopia (no blue cones) | #9D0031 | 0.053 |
| Achromatopsia (no color) | #4B4B4B | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901550
#901550
oklch(43.4% 0.162 358.3)
- #005F51
#005F51
oklch(43.4% 0.08 178.1)
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 #901550, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.008
- Berry #990F4B ΔE 0.020
- Purple Red #990147 ΔE 0.023
- Dark Fuchsia #9D0759 ΔE 0.030
- Red Purple #820747 ΔE 0.037
- Deep Magenta #A0025C ΔE 0.038
- Violet Red #A50055 ΔE 0.043
- Red Wine #8C0034 ΔE 0.043
Use #901550 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.