#310820
Closest named color: Dark Plum (#3F012C). oklch(22% 0.072 348.6), rgb(49, 8, 32).
Aa
White text reads best on this color (17.70:1).
About this color
#310820 is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.072 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.041 away. White text reads best on it, at 17.70:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.18:1 |
| White text | 17.70:1 |
Values
| HEX | #310820 |
| RGB | rgb(49, 8, 32) |
| HSL | hsl(325, 72%, 11%) |
| OKLCH | oklch(22% 0.072 348.6) |
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 #310820 | 17.70:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310820 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #310820 text on white | 17.70:1 | AAA | Lc 104.1 | Preferred for body text |
| #310820 text on black | 1.18:1 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E4EC
oklch(93.7% 0.024 351.3)
-
Step 200
200
#F2CDDE
oklch(88.5% 0.047 348.7)
-
Step 300
300
#EBAACA
oklch(80.8% 0.086 348.2)
-
Step 400
400
#DE7BAF
oklch(70.7% 0.137 348.4)
-
Step 500
500
#D2549B
oklch(63% 0.176 348.4)
-
Step 600
600
#BD3385
oklch(55.5% 0.191 348.7)
-
Step 700
700
#A32471
oklch(49.1% 0.177 348.7)
-
Step 800
800
#84215C
oklch(42.7% 0.146 348.5)
-
Step 900
900
#6B224B
oklch(37.8% 0.114 349.2)
-
Step 950
950 (this color)
#310820
oklch(22% 0.072 348.6)
#310820 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) | #0E1421 | 0.080 |
| Deuteranopia (no green cones) | #1A1B1F | 0.071 |
| Tritanopia (no blue cones) | #350712 | 0.029 |
| Achromatopsia (no color) | #181818 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310820
#310820
oklch(22% 0.072 348.6)
- #002117
#002117
oklch(22% 0.044 168.9)
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 #310820, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.041
- Eggplant #380835 ΔE 0.043
- Aubergine #3D0734 ΔE 0.047
- Dark Maroon #3C0008 ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.052
- Midnight Purple #280137 ΔE 0.059
- Dark Purple #35063E ΔE 0.059
- Deep Purple #36013F ΔE 0.063
Use #310820 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.