#310D1F
Closest named color: Dark Plum (#3F012C). oklch(22.7% 0.063 352.2), rgb(49, 13, 31).
Aa
White text reads best on this color (17.38:1).
About this color
#310D1F is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.063 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.046 away. White text reads best on it, at 17.38:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.20:1 |
| White text | 17.38:1 |
Values
| HEX | #310D1F |
| RGB | rgb(49, 13, 31) |
| HSL | hsl(330, 58%, 12%) |
| OKLCH | oklch(22.7% 0.063 352.2) |
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 #310D1F | 17.38:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #310D1F | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #310D1F text on white | 17.38:1 | AAA | Lc 103.9 | Preferred for body text |
| #310D1F text on black | 1.20:1 | 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F6E4EB
oklch(93.5% 0.022 351.9)
-
Step 200
200
#F0CEDC
oklch(88.4% 0.042 351.2)
-
Step 300
300
#E8ADC5
oklch(80.9% 0.075 352.7)
-
Step 400
400
#D980A8
oklch(70.7% 0.119 352.2)
-
Step 500
500
#CC5D93
oklch(63.1% 0.153 351.9)
-
Step 600
600
#B7407D
oklch(55.6% 0.165 352.1)
-
Step 700
700
#9E3169
oklch(49.2% 0.154 352.6)
-
Step 800
800
#802A56
oklch(42.7% 0.127 352.2)
-
Step 900
900
#672747
oklch(37.6% 0.1 351.8)
-
Step 950
950 (this color)
#310D1F
oklch(22.7% 0.063 352.2)
#310D1F 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) | #121620 | 0.069 |
| Deuteranopia (no green cones) | #1C1D1E | 0.064 |
| Tritanopia (no blue cones) | #350B14 | 0.022 |
| Achromatopsia (no color) | #1A1A1A | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310D1F
#310D1F
oklch(22.7% 0.063 352.2)
- #00231A
#00231A
oklch(22.8% 0.044 171.9)
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 #310D1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.046
- Dark Maroon #3C0008 ΔE 0.046
- Eggplant #380835 ΔE 0.047
- Aubergine #3D0734 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.060
- Deep Brown #410200 ΔE 0.061
- Dark Purple #35063E ΔE 0.064
- Midnight Purple #280137 ΔE 0.067
Use #310D1F 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.