#310F19
Closest named color: Dark Maroon (#3C0008). oklch(22.7% 0.056 4.3), rgb(49, 15, 25).
Aa
White text reads best on this color (17.31:1).
About this color
#310F19 is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.056 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.040 away. White text reads best on it, at 17.31:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.21:1 |
| White text | 17.31:1 |
Values
| HEX | #310F19 |
| RGB | rgb(49, 15, 25) |
| HSL | hsl(342, 53%, 13%) |
| OKLCH | oklch(22.7% 0.056 4.3) |
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 #310F19 | 17.31:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #310F19 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #310F19 text on white | 17.31:1 | AAA | Lc 103.9 | Preferred for body text |
| #310F19 text on black | 1.21:1 | 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
#F6E5E8
oklch(93.6% 0.019 5.3)
-
Step 200
200
#F0D0D6
oklch(88.6% 0.037 5.1)
-
Step 300
300
#E7AFBB
oklch(80.9% 0.067 4.4)
-
Step 400
400
#D98498
oklch(70.8% 0.107 4.9)
-
Step 500
500
#CC627F
oklch(63.1% 0.137 4.5)
-
Step 600
600
#B74669
oklch(55.6% 0.149 4.1)
-
Step 700
700
#9D3757
oklch(49.1% 0.138 4.4)
-
Step 800
800
#802E47
oklch(42.7% 0.115 4.5)
-
Step 900
900
#672A3C
oklch(37.7% 0.09 3.9)
-
Step 950
950 (this color)
#310F19
oklch(22.7% 0.056 4.3)
#310F19 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) | #151619 | 0.063 |
| Deuteranopia (no green cones) | #1E1D18 | 0.058 |
| Tritanopia (no blue cones) | #360B13 | 0.016 |
| Achromatopsia (no color) | #1B1B1B | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310F19
#310F19
oklch(22.7% 0.056 4.3)
- #00221E
#00221E
oklch(22.6% 0.04 183.6)
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 #310F19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.040
- Deep Brown #410200 ΔE 0.051
- Dark Plum #3F012C ΔE 0.057
- Eggplant #380835 ΔE 0.060
- Dark Brown #341C02 ΔE 0.061
- Aubergine #3D0734 ΔE 0.062
- Mahogany #4A0100 ΔE 0.066
- Chocolate Brown #411900 ΔE 0.066
Use #310F19 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.