#310D19
Closest named color: Dark Maroon (#3C0008). oklch(22.4% 0.06 2.5), rgb(49, 13, 25).
Aa
White text reads best on this color (17.46:1).
About this color
#310D19 is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.060 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.038 away. White text reads best on it, at 17.46:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.060) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.20:1 |
| White text | 17.46:1 |
Values
| HEX | #310D19 |
| RGB | rgb(49, 13, 25) |
| HSL | hsl(340, 58%, 12%) |
| OKLCH | oklch(22.4% 0.06 2.5) |
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 #310D19 | 17.46:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #310D19 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #310D19 text on white | 17.46:1 | AAA | Lc 104.0 | Preferred for body text |
| #310D19 text on black | 1.20:1 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F7E4E8
oklch(93.5% 0.021 3.1)
-
Step 200
200
#F1CFD7
oklch(88.5% 0.039 2)
-
Step 300
300
#E9AEBC
oklch(80.9% 0.071 3.1)
-
Step 400
400
#DB819A
oklch(70.6% 0.114 2.5)
-
Step 500
500
#CF5F82
oklch(63.2% 0.146 2.5)
-
Step 600
600
#BA426B
oklch(55.7% 0.158 2.7)
-
Step 700
700
#A03359
oklch(49.2% 0.147 2.9)
-
Step 800
800
#822B49
oklch(42.7% 0.122 2.6)
-
Step 900
900
#69283D
oklch(37.7% 0.096 2.6)
-
Step 950
950 (this color)
#310D19
oklch(22.4% 0.06 2.5)
#310D19 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) | #141519 | 0.066 |
| Deuteranopia (no green cones) | #1D1C18 | 0.061 |
| Tritanopia (no blue cones) | #360912 | 0.017 |
| Achromatopsia (no color) | #1A1A1A | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310D19
#310D19
oklch(22.4% 0.06 2.5)
- #00211D
#00211D
oklch(22.3% 0.04 183.4)
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 #310D19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.038
- Deep Brown #410200 ΔE 0.052
- Dark Plum #3F012C ΔE 0.054
- Eggplant #380835 ΔE 0.059
- Aubergine #3D0734 ΔE 0.060
- Dark Brown #341C02 ΔE 0.066
- Mahogany #4A0100 ΔE 0.067
- Chocolate Brown #411900 ΔE 0.070
Use #310D19 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.