#3F1221
Closest named color: Dark Plum (#3F012C). oklch(26.1% 0.072 2.8), rgb(63, 18, 33).
Aa
White text reads best on this color (15.91:1).
About this color
#3F1221 is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.072 and its hue 3°. 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 15.91:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.31:1 |
| White text | 15.91:1 |
Values
| HEX | #3F1221 |
| RGB | rgb(63, 18, 33) |
| HSL | hsl(340, 56%, 16%) |
| OKLCH | oklch(26.1% 0.072 2.8) |
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 #3F1221 | 15.91:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #3F1221 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #3F1221 text on white | 15.91:1 | AAA | Lc 102.4 | Preferred for body text |
| #3F1221 text on black | 1.31:1 | 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
#F9E3E8
oklch(93.5% 0.025 2.1)
-
Step 200
200
#F5CDD6
oklch(88.5% 0.046 2.9)
-
Step 300
300
#F0AABB
oklch(80.9% 0.085 3.2)
-
Step 400
400
#E57A99
oklch(70.8% 0.136 2.7)
-
Step 500
500
#DA5280
oklch(63.1% 0.174 2.6)
-
Step 600
600
#C53069
oklch(55.6% 0.189 2.8)
-
Step 700
700
#AA2057
oklch(49.1% 0.176 3)
-
Step 800
800
#8A1E47
oklch(42.7% 0.146 3.1)
-
Step 900
900
#6F203C
oklch(37.7% 0.114 2.6)
-
Step 950
950 (this color)
#3F1221
oklch(26.1% 0.072 2.8)
#3F1221 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) | #1B1D21 | 0.080 |
| Deuteranopia (no green cones) | #272520 | 0.072 |
| Tritanopia (no blue cones) | #450D18 | 0.020 |
| Achromatopsia (no color) | #222222 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1221
#3F1221
oklch(26.1% 0.072 2.8)
- #002B26
#002B26
oklch(26% 0.046 183.1)
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 #3F1221, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.044
- Dark Maroon #3C0008 ΔE 0.048
- Aubergine #3D0734 ΔE 0.048
- Deep Brown #410200 ΔE 0.051
- Mahogany #4A0100 ΔE 0.052
- Eggplant #380835 ΔE 0.053
- Chocolate Brown #411900 ΔE 0.057
- Dark Brown #341C02 ΔE 0.067
Use #3F1221 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.