#310B10
Closest named color: Dark Maroon (#3C0008). oklch(21.8% 0.062 16.1), rgb(49, 11, 16).
Aa
White text reads best on this color (17.70:1).
About this color
#310B10 is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.062 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.030 away. White text reads best on it, at 17.70:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.70:1 |
Values
| HEX | #310B10 |
| RGB | rgb(49, 11, 16) |
| HSL | hsl(352, 63%, 12%) |
| OKLCH | oklch(21.8% 0.062 16.1) |
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 #310B10 | 17.70:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310B10 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #310B10 text on white | 17.70:1 | AAA | Lc 104.1 | Preferred for body text |
| #310B10 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E5
oklch(93.7% 0.021 17.5)
-
Step 200
200
#F3CFD0
oklch(88.5% 0.041 16)
-
Step 300
300
#ECAEB0
oklch(80.9% 0.073 16.7)
-
Step 400
400
#E08187
oklch(70.7% 0.117 16.5)
-
Step 500
500
#D45E6A
oklch(63.1% 0.149 16.2)
-
Step 600
600
#BF4052
oklch(55.6% 0.162 15.9)
-
Step 700
700
#A43142
oklch(49% 0.15 16.3)
-
Step 800
800
#862A37
oklch(42.8% 0.125 16)
-
Step 900
900
#6C282F
oklch(37.8% 0.097 16.8)
-
Step 950
950 (this color)
#310B10
oklch(21.8% 0.062 16.1)
#310B10 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) | #141310 | 0.068 |
| Deuteranopia (no green cones) | #1E1B0F | 0.062 |
| Tritanopia (no blue cones) | #36050D | 0.015 |
| Achromatopsia (no color) | #181818 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310B10
#310B10
oklch(21.8% 0.062 16.1)
- #001F20
#001F20
oklch(21.7% 0.037 197.8)
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 #310B10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.030
- Deep Brown #410200 ΔE 0.043
- Dark Brown #341C02 ΔE 0.060
- Mahogany #4A0100 ΔE 0.062
- Chocolate Brown #411900 ΔE 0.065
- Dark Plum #3F012C ΔE 0.066
- Very Dark Brown #1D0200 ΔE 0.070
- Eggplant #380835 ΔE 0.073
Use #310B10 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.