#310D0A
Closest named color: Dark Maroon (#3C0008). oklch(22% 0.059 27.7), rgb(49, 13, 10).
Aa
White text reads best on this color (17.60:1).
About this color
#310D0A is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.059 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.033 away. White text reads best on it, at 17.60:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.19:1 |
| White text | 17.60:1 |
Values
| HEX | #310D0A |
| RGB | rgb(49, 13, 10) |
| HSL | hsl(5, 66%, 12%) |
| OKLCH | oklch(22% 0.059 27.7) |
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 #310D0A | 17.60:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310D0A | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #310D0A text on white | 17.60:1 | AAA | Lc 104.1 | Preferred for body text |
| #310D0A 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F2D0CB
oklch(88.5% 0.039 27.8)
-
Step 300
300
#EBB0A8
oklch(81% 0.07 27.5)
-
Step 400
400
#DE8479
oklch(70.7% 0.113 27.7)
-
Step 500
500
#D26257
oklch(63% 0.144 27.6)
-
Step 600
600
#BE463C
oklch(55.7% 0.156 28)
-
Step 700
700
#A3362E
oklch(49.1% 0.145 27.9)
-
Step 800
800
#842E27
oklch(42.6% 0.12 27.9)
-
Step 900
900
#6B2A24
oklch(37.7% 0.094 27.7)
-
Step 950
950 (this color)
#310D0A
oklch(22% 0.059 27.7)
#310D0A 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) | #161409 | 0.064 |
| Deuteranopia (no green cones) | #1F1C09 | 0.059 |
| Tritanopia (no blue cones) | #37060D | 0.021 |
| Achromatopsia (no color) | #191919 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310D0A
#310D0A
oklch(22% 0.059 27.7)
- #001F24
#001F24
oklch(21.9% 0.038 209.8)
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 #310D0A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.033
- Deep Brown #410200 ΔE 0.040
- Dark Brown #341C02 ΔE 0.050
- Chocolate Brown #411900 ΔE 0.057
- Mahogany #4A0100 ΔE 0.059
- Very Dark Brown #1D0200 ΔE 0.069
- Dark Plum #3F012C ΔE 0.077
- Jet #212529 ΔE 0.079
Use #310D0A 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.