#31183F
Closest named color: Dark Purple (#35063E). oklch(26.4% 0.075 311.9), rgb(49, 24, 63).
Aa
White text reads best on this color (15.75:1).
About this color
#31183F is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.075 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.038 away. White text reads best on it, at 15.75:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.33:1 |
| White text | 15.75:1 |
Values
| HEX | #31183F |
| RGB | rgb(49, 24, 63) |
| HSL | hsl(278, 45%, 17%) |
| OKLCH | oklch(26.4% 0.075 311.9) |
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 #31183F | 15.75:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #31183F | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #31183F text on white | 15.75:1 | AAA | Lc 102.5 | Preferred for body text |
| #31183F text on black | 1.33:1 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#F0E5F7
oklch(93.6% 0.027 312.6)
-
Step 200
200
#E4D0F1
oklch(88.4% 0.049 312.2)
-
Step 300
300
#D4B0EB
oklch(80.8% 0.09 312)
-
Step 400
400
#BE85E1
oklch(70.8% 0.143 311.7)
-
Step 500
500
#AE62D8
oklch(63.1% 0.183 312)
-
Step 600
600
#9945C5
oklch(55.6% 0.198 311.9)
-
Step 700
700
#8335AA
oklch(49.1% 0.184 312.2)
-
Step 800
800
#6A2D8A
oklch(42.7% 0.153 311.8)
-
Step 900
900
#562A6E
oklch(37.7% 0.119 311.9)
-
Step 950
950 (this color)
#31183F
oklch(26.4% 0.075 311.9)
#31183F 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) | #0D2240 | 0.065 |
| Deuteranopia (no green cones) | #16233E | 0.057 |
| Tritanopia (no blue cones) | #2F1F28 | 0.053 |
| Achromatopsia (no color) | #232323 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31183F
#31183F
oklch(26.4% 0.075 311.9)
- #172C00
#172C00
oklch(26.5% 0.073 131.9)
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 #31183F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.038
- Eggplant #380835 ΔE 0.039
- Aubergine #3D0734 ΔE 0.044
- Deep Purple #36013F ΔE 0.046
- Eggplant Purple #430541 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.058
- Dark Plum #3F012C ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.060
Use #31183F 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.