#310B1B
Closest named color: Dark Maroon (#3C0008). oklch(22.2% 0.064 357.7), rgb(49, 11, 27).
Aa
White text reads best on this color (17.58:1).
About this color
#310B1B is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.064 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.040 away. White text reads best on it, at 17.58:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.19:1 |
| White text | 17.58:1 |
Values
| HEX | #310B1B |
| RGB | rgb(49, 11, 27) |
| HSL | hsl(335, 63%, 12%) |
| OKLCH | oklch(22.2% 0.064 357.7) |
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 #310B1B | 17.58:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310B1B | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #310B1B text on white | 17.58:1 | AAA | Lc 104.0 | Preferred for body text |
| #310B1B text on black | 1.19:1 | 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
#F7E4EA
oklch(93.6% 0.022 356.3)
-
Step 200
200
#F2CED9
oklch(88.5% 0.043 357.7)
-
Step 300
300
#EAADC1
oklch(81% 0.076 357.5)
-
Step 400
400
#DD7FA1
oklch(70.8% 0.122 357.6)
-
Step 500
500
#D15B8A
oklch(63.2% 0.156 357.6)
-
Step 600
600
#BC3D73
oklch(55.7% 0.169 358)
-
Step 700
700
#A12E61
oklch(49.1% 0.157 357.5)
-
Step 800
800
#83284F
oklch(42.7% 0.13 357.8)
-
Step 900
900
#6A2642
oklch(37.8% 0.102 357.5)
-
Step 950
950 (this color)
#310B1B
oklch(22.2% 0.064 357.7)
#310B1B 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) | #12141B | 0.071 |
| Deuteranopia (no green cones) | #1C1C1A | 0.066 |
| Tritanopia (no blue cones) | #360811 | 0.021 |
| Achromatopsia (no color) | #191919 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310B1B
#310B1B
oklch(22.2% 0.064 357.7)
- #00211B
#00211B
oklch(22.2% 0.041 178.2)
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 #310B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.040
- Dark Plum #3F012C ΔE 0.050
- Eggplant #380835 ΔE 0.053
- Deep Brown #410200 ΔE 0.056
- Aubergine #3D0734 ΔE 0.056
- Very Dark Purple #2A0134 ΔE 0.064
- Dark Purple #35063E ΔE 0.070
- Mahogany #4A0100 ΔE 0.070
Use #310B1B 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.