#31091D
Closest named color: Dark Maroon (#3C0008). oklch(22% 0.069 353.5), rgb(49, 9, 29).
Aa
White text reads best on this color (17.68:1).
About this color
#31091D is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.069 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.043 away. White text reads best on it, at 17.68:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.68:1 |
Values
| HEX | #31091D |
| RGB | rgb(49, 9, 29) |
| HSL | hsl(330, 69%, 11%) |
| OKLCH | oklch(22% 0.069 353.5) |
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 #31091D | 17.68:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #31091D | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #31091D text on white | 17.68:1 | AAA | Lc 104.1 | Preferred for body text |
| #31091D 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
#F8E4EB
oklch(93.7% 0.024 354.3)
-
Step 200
200
#F2CDDB
oklch(88.4% 0.045 353.3)
-
Step 300
300
#EBABC5
oklch(80.9% 0.082 353)
-
Step 400
400
#DE7CA7
oklch(70.6% 0.131 353.2)
-
Step 500
500
#D25791
oklch(63.1% 0.166 353.5)
-
Step 600
600
#BD377B
oklch(55.5% 0.181 353.6)
-
Step 700
700
#A32868
oklch(49.1% 0.169 353.5)
-
Step 800
800
#842455
oklch(42.7% 0.139 353.3)
-
Step 900
900
#6B2346
oklch(37.7% 0.109 353.5)
-
Step 950
950 (this color)
#31091D
oklch(22% 0.069 353.5)
#31091D 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) | #10141E | 0.076 |
| Deuteranopia (no green cones) | #1B1B1C | 0.068 |
| Tritanopia (no blue cones) | #350611 | 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°).
- #31091D
#31091D
oklch(22% 0.069 353.5)
- #002119
#002119
oklch(22.1% 0.042 173.3)
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 #31091D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.043
- Dark Plum #3F012C ΔE 0.045
- Eggplant #380835 ΔE 0.049
- Aubergine #3D0734 ΔE 0.052
- Very Dark Purple #2A0134 ΔE 0.058
- Deep Brown #410200 ΔE 0.060
- Dark Purple #35063E ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
Use #31091D 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.