#310B15
Closest named color: Dark Maroon (#3C0008). oklch(22% 0.062 7.8), rgb(49, 11, 21).
Aa
White text reads best on this color (17.65:1).
About this color
#310B15 is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.062 and its hue 8°. 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 17.65:1.
| 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 | 17.65:1 |
Values
| HEX | #310B15 |
| RGB | rgb(49, 11, 21) |
| HSL | hsl(344, 63%, 12%) |
| OKLCH | oklch(22% 0.062 7.8) |
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 #310B15 | 17.65:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310B15 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #310B15 text on white | 17.65:1 | AAA | Lc 104.1 | Preferred for body text |
| #310B15 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
#F2CFD4
oklch(88.5% 0.04 8.2)
-
Step 300
300
#EBADB8
oklch(80.8% 0.074 7.1)
-
Step 400
400
#DE8093
oklch(70.6% 0.117 7.5)
-
Step 500
500
#D35D78
oklch(63.2% 0.15 8.2)
-
Step 600
600
#BE3F61
oklch(55.7% 0.164 8)
-
Step 700
700
#A33050
oklch(49.1% 0.152 8.1)
-
Step 800
800
#852942
oklch(42.8% 0.127 7.8)
-
Step 900
900
#6B2738
oklch(37.8% 0.098 7.6)
-
Step 950
950 (this color)
#310B15
oklch(22% 0.062 7.8)
#310B15 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) | #131415 | 0.070 |
| Deuteranopia (no green cones) | #1D1B14 | 0.063 |
| Tritanopia (no blue cones) | #36060F | 0.016 |
| Achromatopsia (no color) | #191919 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310B15
#310B15
oklch(22% 0.062 7.8)
- #00201E
#00201E
oklch(22% 0.038 188.9)
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 #310B15, 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 0.059
- Eggplant #380835 ΔE 0.065
- Mahogany #4A0100 ΔE 0.065
- Dark Brown #341C02 ΔE 0.065
- Aubergine #3D0734 ΔE 0.066
- Chocolate Brown #411900 ΔE 0.070
Use #310B15 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.