#31051E
Closest named color: Dark Plum (#3F012C). oklch(21.5% 0.077 350.3), rgb(49, 5, 30).
Aa
White text reads best on this color (17.93:1).
About this color
#31051E is a very dark, moderately saturated red. In OKLCH its lightness is 21%, its chroma 0.077 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.042 away. White text reads best on it, at 17.93:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.17:1 |
| White text | 17.93:1 |
Values
| HEX | #31051E |
| RGB | rgb(49, 5, 30) |
| HSL | hsl(326, 81%, 11%) |
| OKLCH | oklch(21.5% 0.077 350.3) |
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 #31051E | 17.93:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #31051E | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #31051E text on white | 17.93:1 | AAA | Lc 104.1 | Preferred for body text |
| #31051E text on black | 1.17:1 | 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F9E3EC
oklch(93.6% 0.027 350.9)
-
Step 200
200
#F4CCDE
oklch(88.5% 0.051 349.3)
-
Step 300
300
#EEA9C8
oklch(80.9% 0.09 350.7)
-
Step 400
400
#E278AD
oklch(70.7% 0.144 350.1)
-
Step 500
500
#D74F98
oklch(63.1% 0.185 350.5)
-
Step 600
600
#C22B83
oklch(55.6% 0.201 350.3)
-
Step 700
700
#A71A6F
oklch(49.1% 0.188 350.1)
-
Step 800
800
#881A5A
oklch(42.7% 0.156 350.5)
-
Step 900
900
#6D1E4A
oklch(37.6% 0.121 350.2)
-
Step 950
950 (this color)
#31051E
oklch(21.5% 0.077 350.3)
#31051E 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) | #0C121F | 0.086 |
| Deuteranopia (no green cones) | #191A1D | 0.076 |
| Tritanopia (no blue cones) | #350310 | 0.028 |
| Achromatopsia (no color) | #171717 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31051E
#31051E
oklch(21.5% 0.077 350.3)
- #001F16
#001F16
oklch(21.3% 0.042 170.2)
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 #31051E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.042
- Eggplant #380835 ΔE 0.047
- Dark Maroon #3C0008 ΔE 0.047
- Aubergine #3D0734 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.052
- Midnight Purple #280137 ΔE 0.060
- Dark Purple #35063E ΔE 0.062
- Deep Brown #410200 ΔE 0.065
Use #31051E 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.