#310105
Closest named color: Dark Maroon (#3C0008). oklch(20% 0.078 22.1), rgb(49, 1, 5).
Aa
White text reads best on this color (18.46:1).
About this color
#310105 is a very dark, moderately saturated red. In OKLCH its lightness is 20%, its chroma 0.078 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.029 away. White text reads best on it, at 18.46:1.
| Hue family | Reds |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.13:1 |
| White text | 18.46:1 |
Values
| HEX | #310105 |
| RGB | rgb(49, 1, 5) |
| HSL | hsl(355, 96%, 10%) |
| OKLCH | oklch(20% 0.078 22.1) |
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 #310105 | 18.46:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #310105 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #310105 text on white | 18.46:1 | AAA | Lc 104.3 | Preferred for body text |
| #310105 text on black | 1.13:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CDCA
oklch(88.5% 0.05 22.7)
-
Step 300
300
#F7A9A6
oklch(80.9% 0.093 21.8)
-
Step 400
400
#EE7776
oklch(70.6% 0.147 22)
-
Step 500
500
#E54C53
oklch(63.1% 0.189 21.9)
-
Step 600
600
#D02337
oklch(55.5% 0.205 22.1)
-
Step 700
700
#B4102A
oklch(49.2% 0.191 22)
-
Step 800
800
#921524
oklch(42.7% 0.158 21.9)
-
Step 900
900
#751C22
oklch(37.7% 0.123 21.9)
-
Step 950
950 (this color)
#310105
oklch(20% 0.078 22.1)
#310105 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) | #0F0D05 | 0.086 |
| Deuteranopia (no green cones) | #1B1804 | 0.080 |
| Tritanopia (no blue cones) | #370003 | 0.016 |
| Achromatopsia (no color) | #141414 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310105
#310105
oklch(20% 0.078 22.1)
- #001A1D
#001A1D
oklch(19.9% 0.034 205)
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 #310105, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.029
- Deep Brown #410200 ΔE 0.044
- Very Dark Brown #1D0200 ΔE 0.056
- Mahogany #4A0100 ΔE 0.065
- Dark Brown #341C02 ΔE 0.075
- Dark Plum #3F012C ΔE 0.078
- Chocolate Brown #411900 ΔE 0.079
- Eggplant #380835 ΔE 0.089
Use #310105 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.