#310515
Closest named color: Dark Maroon (#3C0008). oklch(21.1% 0.072 3.3), rgb(49, 5, 21).
Aa
White text reads best on this color (18.05:1).
About this color
#310515 is a very dark, moderately saturated red. In OKLCH its lightness is 21%, its chroma 0.072 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.034 away. White text reads best on it, at 18.05:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.16:1 |
| White text | 18.05:1 |
Values
| HEX | #310515 |
| RGB | rgb(49, 5, 21) |
| HSL | hsl(338, 81%, 11%) |
| OKLCH | oklch(21.1% 0.072 3.3) |
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 #310515 | 18.05:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #310515 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #310515 text on white | 18.05:1 | AAA | Lc 104.2 | Preferred for body text |
| #310515 text on black | 1.16:1 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#F9E3E8
oklch(93.5% 0.025 2.1)
-
Step 200
200
#F6CDD6
oklch(88.6% 0.048 3.3)
-
Step 300
300
#F0AABB
oklch(80.9% 0.085 3.2)
-
Step 400
400
#E67998
oklch(70.7% 0.138 3.1)
-
Step 500
500
#DB527E
oklch(63.2% 0.175 3.7)
-
Step 600
600
#C62F68
oklch(55.7% 0.19 3.3)
-
Step 700
700
#AA1F56
oklch(49% 0.176 3.4)
-
Step 800
800
#8A1D47
oklch(42.6% 0.147 2.9)
-
Step 900
900
#6F203B
oklch(37.6% 0.113 3.4)
-
Step 950
950 (this color)
#310515
oklch(21.1% 0.072 3.3)
#310515 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) | #0F1115 | 0.081 |
| Deuteranopia (no green cones) | #1B1914 | 0.072 |
| Tritanopia (no blue cones) | #36000B | 0.021 |
| Achromatopsia (no color) | #161616 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310515
#310515
oklch(21.1% 0.072 3.3)
- #001E1A
#001E1A
oklch(21.1% 0.038 182.7)
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 #310515, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.034
- Deep Brown #410200 ΔE 0.052
- Dark Plum #3F012C ΔE 0.055
- Eggplant #380835 ΔE 0.063
- Aubergine #3D0734 ΔE 0.064
- Very Dark Purple #2A0134 ΔE 0.069
- Mahogany #4A0100 ΔE 0.070
- Very Dark Brown #1D0200 ΔE 0.071
Use #310515 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.