#31091E
Closest named color: Dark Plum (#3F012C). oklch(22% 0.069 351.9), rgb(49, 9, 30).
Aa
White text reads best on this color (17.67:1).
About this color
#31091E is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.069 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.044 away. White text reads best on it, at 17.67:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.18:1 |
| White text | 17.67:1 |
Values
| HEX | #31091E |
| RGB | rgb(49, 9, 30) |
| HSL | hsl(329, 69%, 11%) |
| OKLCH | oklch(22% 0.069 351.9) |
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 #31091E | 17.67:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #31091E | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #31091E text on white | 17.67:1 | AAA | Lc 104.1 | Preferred for body text |
| #31091E 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F7E4EB
oklch(93.6% 0.023 353.2)
-
Step 200
200
#F2CDDC
oklch(88.4% 0.046 351.7)
-
Step 300
300
#EBABC6
oklch(80.9% 0.082 352.1)
-
Step 400
400
#DE7CA9
oklch(70.7% 0.132 352)
-
Step 500
500
#D25794
oklch(63.2% 0.168 352.1)
-
Step 600
600
#BD377E
oklch(55.6% 0.182 352.2)
-
Step 700
700
#A2286B
oklch(49.1% 0.169 351.7)
-
Step 800
800
#842357
oklch(42.7% 0.141 351.9)
-
Step 900
900
#6A2348
oklch(37.6% 0.11 351.4)
-
Step 950
950 (this color)
#31091E
oklch(22% 0.069 351.9)
#31091E 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) | #0F141F | 0.077 |
| Deuteranopia (no green cones) | #1B1B1D | 0.068 |
| Tritanopia (no blue cones) | #350712 | 0.024 |
| Achromatopsia (no color) | #181818 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31091E
#31091E
oklch(22% 0.069 351.9)
- #002118
#002118
oklch(22.1% 0.043 171.1)
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 #31091E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.044
- Dark Maroon #3C0008 ΔE 0.045
- Eggplant #380835 ΔE 0.047
- Aubergine #3D0734 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.057
- Deep Brown #410200 ΔE 0.061
- Dark Purple #35063E ΔE 0.063
- Midnight Purple #280137 ΔE 0.064
Use #31091E 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.