#310A19
Closest named color: Dark Maroon (#3C0008). oklch(22% 0.065 0.4), rgb(49, 10, 25).
Aa
White text reads best on this color (17.67:1).
About this color
#310A19 is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.065 and its hue 0°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.037 away. White text reads best on it, at 17.67:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.67:1 |
Values
| HEX | #310A19 |
| RGB | rgb(49, 10, 25) |
| HSL | hsl(337, 66%, 12%) |
| OKLCH | oklch(22% 0.065 0.4) |
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 #310A19 | 17.67:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310A19 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #310A19 text on white | 17.67:1 | AAA | Lc 104.1 | Preferred for body text |
| #310A19 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4E9
oklch(93.6% 0.023 0.5)
-
Step 200
200
#F3CED8
oklch(88.6% 0.043 359.9)
-
Step 300
300
#EBACBE
oklch(80.8% 0.077 0.2)
-
Step 400
400
#DE7E9D
oklch(70.6% 0.123 0.1)
-
Step 500
500
#D25A85
oklch(63% 0.157 0.2)
-
Step 600
600
#BE3B6E
oklch(55.6% 0.172 0.6)
-
Step 700
700
#A32C5C
oklch(49.1% 0.159 0.5)
-
Step 800
800
#85264B
oklch(42.7% 0.133 0.7)
-
Step 900
900
#6B253F
oklch(37.7% 0.103 0.3)
-
Step 950
950 (this color)
#310A19
oklch(22% 0.065 0.4)
#310A19 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) | #121419 | 0.072 |
| Deuteranopia (no green cones) | #1C1B18 | 0.066 |
| Tritanopia (no blue cones) | #360610 | 0.019 |
| Achromatopsia (no color) | #181818 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310A19
#310A19
oklch(22% 0.065 0.4)
- #00201B
#00201B
oklch(21.8% 0.039 180.5)
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 #310A19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.037
- Dark Plum #3F012C ΔE 0.052
- Deep Brown #410200 ΔE 0.053
- Eggplant #380835 ΔE 0.057
- Aubergine #3D0734 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.067
- Mahogany #4A0100 ΔE 0.069
- Dark Brown #341C02 ΔE 0.072
Use #310A19 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.