#31104B
Closest named color: Dark Purple (#35063E). oklch(26.1% 0.104 305.9), rgb(49, 16, 75).
Aa
White text reads best on this color (16.07:1).
About this color
#31104B is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.104 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.031 away. White text reads best on it, at 16.07:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.30:1 |
| White text | 16.07:1 |
Values
| HEX | #31104B |
| RGB | rgb(49, 16, 75) |
| HSL | hsl(274, 65%, 18%) |
| OKLCH | oklch(26.1% 0.104 305.9) |
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 #31104B | 16.07:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #31104B | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #31104B text on white | 16.07:1 | AAA | Lc 102.6 | Preferred for body text |
| #31104B text on black | 1.30:1 | 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
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#F0E4FD
oklch(93.6% 0.036 307.2)
-
Step 200
200
#E4CEFE
oklch(88.5% 0.069 305.8)
-
Step 300
300
#D4ACFF
oklch(80.9% 0.121 305.9)
-
Step 400
400
#BF7AFF
oklch(70.7% 0.195 306)
-
Step 500
500
#B04CFE
oklch(63.1% 0.252 306)
-
Step 600
600
#9C1BEE
oklch(55.6% 0.274 305.7)
-
Step 700
700
#8500CE
oklch(49% 0.254 305.8)
-
Step 800
800
#6C0FA7
oklch(42.7% 0.211 305.7)
-
Step 900
900
#581B84
oklch(37.7% 0.164 306.2)
-
Step 950
950 (this color)
#31104B
oklch(26.1% 0.104 305.9)
#31104B 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) | #00204D | 0.082 |
| Deuteranopia (no green cones) | #00214A | 0.083 |
| Tritanopia (no blue cones) | #2C1E2C | 0.075 |
| Achromatopsia (no color) | #212121 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31104B
#31104B
oklch(26.1% 0.104 305.9)
- #1C2A00
#1C2A00
oklch(26.2% 0.067 126.5)
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 #31104B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.031
- Deep Purple #36013F ΔE 0.036
- Eggplant #380835 ΔE 0.046
- Eggplant Purple #430541 ΔE 0.048
- Dark Indigo #1F0954 ΔE 0.048
- Aubergine #3D0734 ΔE 0.053
- Midnight Purple #280137 ΔE 0.054
- Very Dark Purple #2A0134 ΔE 0.056
Use #31104B 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.