#901A47
Closest named color: Berry (#990F4B). oklch(43.5% 0.155 4.1), rgb(144, 26, 71).
Aa
White text reads best on this color (8.66:1).
About this color
#901A47 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.155 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Berry (#990F4B), ΔE 0.020 away. White text reads best on it, at 8.66:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Berry (#990F4B) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #901A47 |
| RGB | rgb(144, 26, 71) |
| HSL | hsl(337, 69%, 33%) |
| OKLCH | oklch(43.5% 0.155 4.1) |
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 #901A47 | 8.66:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #901A47 | 2.42:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #901A47 text on white | 8.66:1 | AAA | Lc 88.3 | Fine for body text |
| #901A47 text on black | 2.42:1 | 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
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FAE3E8
oklch(93.6% 0.026 2.8)
-
Step 200
200
#F7CCD5
oklch(88.5% 0.05 4.1)
-
Step 300
300
#F3A8BA
oklch(80.8% 0.091 3.6)
-
Step 400
400
#E97696
oklch(70.6% 0.145 3.9)
-
Step 500
500
#DF4D7C
oklch(63.2% 0.185 4.3)
-
Step 600
600
#CA2665
oklch(55.6% 0.201 4.3)
-
Step 700
700
#AE1454
oklch(49.1% 0.187 4.2)
-
Step 800
800 (this color)
#901A47
oklch(43.5% 0.155 4.1)
-
Step 900
900
#721C3A
oklch(37.7% 0.121 4)
-
Step 950
950
#431222
oklch(26.9% 0.077 3.8)
#901A47 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) | #393D48 | 0.174 |
| Deuteranopia (no green cones) | #585444 | 0.158 |
| Tritanopia (no blue cones) | #9D002E | 0.043 |
| Achromatopsia (no color) | #4B4B4B | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901A47
#901A47
oklch(43.5% 0.155 4.1)
- #005F56
#005F56
oklch(43.6% 0.077 183.7)
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 #901A47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Berry #990F4B ΔE 0.020
- Mulberry #920A4E ΔE 0.020
- Purple Red #990147 ΔE 0.022
- Red Wine #8C0034 ΔE 0.033
- Cranberry #9E003A ΔE 0.034
- Red Purple #820747 ΔE 0.041
- Dark Fuchsia #9D0759 ΔE 0.041
- Wine #80013F ΔE 0.047
Use #901A47 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.