#310A15
Closest named color: Dark Maroon (#3C0008). oklch(21.8% 0.064 7), rgb(49, 10, 21).
Aa
White text reads best on this color (17.72:1).
About this color
#310A15 is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.064 and its hue 7°. 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 17.72:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.72:1 |
Values
| HEX | #310A15 |
| RGB | rgb(49, 10, 21) |
| HSL | hsl(343, 66%, 12%) |
| OKLCH | oklch(21.8% 0.064 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 #310A15 | 17.72:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310A15 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #310A15 text on white | 17.72:1 | AAA | Lc 104.1 | Preferred for body text |
| #310A15 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
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E7
oklch(93.6% 0.022 7.2)
-
Step 200
200
#F3CED4
oklch(88.4% 0.042 7)
-
Step 300
300
#ECADB8
oklch(80.9% 0.075 7.3)
-
Step 400
400
#E07F94
oklch(70.8% 0.121 6.8)
-
Step 500
500
#D45B79
oklch(63.1% 0.154 7.2)
-
Step 600
600
#BF3D62
oklch(55.6% 0.167 7.2)
-
Step 700
700
#A42D51
oklch(49% 0.156 7)
-
Step 800
800
#852743
oklch(42.6% 0.129 6.5)
-
Step 900
900
#6C2638
oklch(37.8% 0.101 7.5)
-
Step 950
950 (this color)
#310A15
oklch(21.8% 0.064 7)
#310A15 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) | #131315 | 0.070 |
| Deuteranopia (no green cones) | #1D1B14 | 0.065 |
| Tritanopia (no blue cones) | #36050E | 0.017 |
| Achromatopsia (no color) | #181818 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310A15
#310A15
oklch(21.8% 0.064 7)
- #00201D
#00201D
oklch(21.9% 0.038 186)
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 #310A15, 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 0.048
- Dark Plum #3F012C ΔE 0.058
- Eggplant #380835 ΔE 0.064
- Mahogany #4A0100 ΔE 0.065
- Aubergine #3D0734 ΔE 0.066
- Dark Brown #341C02 ΔE 0.067
- Chocolate Brown #411900 ΔE 0.072
Use #310A15 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.