#31133B
Closest named color: Dark Purple (#35063E). oklch(25.3% 0.08 316.9), rgb(49, 19, 59).
Aa
White text reads best on this color (16.31:1).
About this color
#31133B is a dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.080 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.027 away. White text reads best on it, at 16.31:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.28:1 |
| White text | 16.31:1 |
Values
| HEX | #31133B |
| RGB | rgb(49, 19, 59) |
| HSL | hsl(285, 51%, 15%) |
| OKLCH | oklch(25.3% 0.08 316.9) |
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 #31133B | 16.31:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #31133B | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #31133B text on white | 16.31:1 | AAA | Lc 103.0 | Preferred for body text |
| #31133B text on black | 1.28:1 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F1E5F6
oklch(93.6% 0.026 316.1)
-
Step 200
200
#E7CFF1
oklch(88.5% 0.053 316)
-
Step 300
300
#D9AEE9
oklch(80.9% 0.094 316.7)
-
Step 400
400
#C680DE
oklch(70.7% 0.151 317.1)
-
Step 500
500
#B65CD5
oklch(63.1% 0.192 316.7)
-
Step 600
600
#A23CC2
oklch(55.6% 0.21 317)
-
Step 700
700
#8A2DA7
oklch(49% 0.194 316.8)
-
Step 800
800
#712788
oklch(42.8% 0.162 317)
-
Step 900
900
#5B266D
oklch(37.7% 0.126 316.6)
-
Step 950
950 (this color)
#31133B
oklch(25.3% 0.08 316.9)
#31133B 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) | #081E3C | 0.075 |
| Deuteranopia (no green cones) | #14213A | 0.065 |
| Tritanopia (no blue cones) | #311A24 | 0.053 |
| Achromatopsia (no color) | #202020 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31133B
#31133B
oklch(25.3% 0.08 316.9)
- #0E2A00
#0E2A00
oklch(25.3% 0.076 136.7)
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 #31133B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.027
- Eggplant #380835 ΔE 0.027
- Aubergine #3D0734 ΔE 0.035
- Deep Purple #36013F ΔE 0.036
- Eggplant Purple #430541 ΔE 0.046
- Very Dark Purple #2A0134 ΔE 0.047
- Midnight Purple #280137 ΔE 0.048
- Dark Plum #3F012C ΔE 0.050
Use #31133B 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.