#391021
Closest named color: Dark Plum (#3F012C). oklch(24.7% 0.068 357.5), rgb(57, 16, 33).
Aa
White text reads best on this color (16.53:1).
About this color
#391021 is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.068 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.040 away. White text reads best on it, at 16.53:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.27:1 |
| White text | 16.53:1 |
Values
| HEX | #391021 |
| RGB | rgb(57, 16, 33) |
| HSL | hsl(335, 56%, 14%) |
| OKLCH | oklch(24.7% 0.068 357.5) |
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 #391021 | 16.53:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #391021 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #391021 text on white | 16.53:1 | AAA | Lc 103.1 | Preferred for body text |
| #391021 text on black | 1.27:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4EA
oklch(93.7% 0.023 357.4)
-
Step 200
200
#F3CDD9
oklch(88.4% 0.045 357.1)
-
Step 300
300
#ECABC1
oklch(80.8% 0.081 357)
-
Step 400
400
#E07CA1
oklch(70.7% 0.13 357.4)
-
Step 500
500
#D4578A
oklch(63.1% 0.165 357.5)
-
Step 600
600
#BF3774
oklch(55.6% 0.18 357.3)
-
Step 700
700
#A42861
oklch(49% 0.166 357.4)
-
Step 800
800
#86244F
oklch(42.8% 0.138 357.9)
-
Step 900
900
#6C2342
oklch(37.7% 0.109 357.4)
-
Step 950
950 (this color)
#391021
oklch(24.7% 0.068 357.5)
#391021 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) | #171A21 | 0.076 |
| Deuteranopia (no green cones) | #222220 | 0.070 |
| Tritanopia (no blue cones) | #3E0D17 | 0.021 |
| Achromatopsia (no color) | #1F1F1F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #391021
#391021
oklch(24.7% 0.068 357.5)
- #002821
#002821
oklch(24.8% 0.046 177.9)
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 #391021, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.040
- Aubergine #3D0734 ΔE 0.044
- Dark Maroon #3C0008 ΔE 0.044
- Eggplant #380835 ΔE 0.046
- Deep Brown #410200 ΔE 0.053
- Mahogany #4A0100 ΔE 0.060
- Dark Purple #35063E ΔE 0.065
- Chocolate Brown #411900 ΔE 0.065
Use #391021 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.