#644186
Closest named color: Rebecca Purple (#663399). oklch(44.7% 0.114 305.7), rgb(100, 65, 134).
Aa
White text reads best on this color (7.94:1).
About this color
#644186 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.114 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.047 away. White text reads best on it, at 7.94:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #644186 |
| RGB | rgb(100, 65, 134) |
| HSL | hsl(270, 35%, 39%) |
| OKLCH | oklch(44.7% 0.114 305.7) |
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 #644186 | 7.94:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #644186 | 2.64:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #644186 text on white | 7.94:1 | AAA | Lc 87.3 | Fine for body text |
| #644186 text on black | 2.64:1 | Fails | Lc -14.8 | 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 800.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD3ED
oklch(88.4% 0.037 306.4)
-
Step 300
300
#CBB6E4
oklch(80.9% 0.068 305.6)
-
Step 400
400
#B18FD6
oklch(70.7% 0.107 305.8)
-
Step 500
500
#9E72CB
oklch(63.2% 0.137 305.6)
-
Step 600
600
#8958B7
oklch(55.6% 0.149 306)
-
Step 700
700
#74489E
oklch(49.2% 0.138 305.5)
-
Step 800
800 (this color)
#644186
oklch(44.7% 0.114 305.7)
-
Step 900
900
#4D3367
oklch(37.6% 0.09 305.6)
-
Step 950
950
#2D1F3C
oklch(27.1% 0.055 305.3)
#644186 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) | #2D5088 | 0.087 |
| Deuteranopia (no green cones) | #375184 | 0.078 |
| Tritanopia (no blue cones) | #5F4D5D | 0.084 |
| Achromatopsia (no color) | #515151 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644186
#644186
oklch(44.7% 0.114 305.7)
- #455F00
#455F00
oklch(44.8% 0.114 125.9)
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 #644186, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.047
- Twilight #4E518B ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.053
- Blueberry #464196 ΔE 0.059
- Dusk #4E5481 ΔE 0.062
- Light Eggplant #894585 ΔE 0.072
- Dusty Grape #545775 ΔE 0.076
- Denim Blue #3B5B92 ΔE 0.087
Use #644186 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.