#421528
Closest named color: Dark Plum (#3F012C). oklch(27.4% 0.073 356.8), rgb(66, 21, 40).
Aa
White text reads best on this color (15.33:1).
About this color
#421528 is a dark, moderately saturated red. In OKLCH its lightness is 27%, its chroma 0.073 and its hue 357°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.044 away. White text reads best on it, at 15.33:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.073) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.36:1 |
| White text | 15.33:1 |
Values
| HEX | #421528 |
| RGB | rgb(66, 21, 40) |
| HSL | hsl(335, 52%, 17%) |
| OKLCH | oklch(27.4% 0.073 356.8) |
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 #421528 | 15.33:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #421528 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #421528 text on white | 15.33:1 | AAA | Lc 101.9 | Preferred for body text |
| #421528 text on black | 1.36:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#F9E3EA
oklch(93.6% 0.026 356.3)
-
Step 200
200
#F5CDDA
oklch(88.6% 0.048 356.6)
-
Step 300
300
#EFA9C2
oklch(80.8% 0.088 356.1)
-
Step 400
400
#E479A2
oklch(70.8% 0.139 356.9)
-
Step 500
500
#D8518B
oklch(63% 0.178 356.8)
-
Step 600
600
#C32E75
oklch(55.5% 0.193 356.8)
-
Step 700
700
#A81F62
oklch(49.1% 0.179 357)
-
Step 800
800
#891D50
oklch(42.7% 0.149 357.1)
-
Step 900
900
#6E2043
oklch(37.7% 0.115 356.5)
-
Step 950
950 (this color)
#421528
oklch(27.4% 0.073 356.8)
#421528 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) | #1C2029 | 0.082 |
| Deuteranopia (no green cones) | #282827 | 0.074 |
| Tritanopia (no blue cones) | #48121C | 0.024 |
| Achromatopsia (no color) | #252525 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421528
#421528
oklch(27.4% 0.073 356.8)
- #002F27
#002F27
oklch(27.3% 0.05 177.8)
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 #421528, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.044
- Aubergine #3D0734 ΔE 0.045
- Eggplant #380835 ΔE 0.052
- Eggplant Purple #430541 ΔE 0.060
- Mahogany #4A0100 ΔE 0.061
- Dark Maroon #3C0008 ΔE 0.062
- Deep Brown #410200 ΔE 0.064
- Chocolate Brown #411900 ΔE 0.064
Use #421528 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.