#6439A3
Closest named color: Rebecca Purple (#663399). oklch(45.4% 0.163 298.3), rgb(100, 57, 163).
Aa
White text reads best on this color (7.90:1).
About this color
#6439A3 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.163 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.020 away. White text reads best on it, at 7.90:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #6439A3 |
| RGB | rgb(100, 57, 163) |
| HSL | hsl(264, 48%, 43%) |
| OKLCH | oklch(45.4% 0.163 298.3) |
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 #6439A3 | 7.90:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #6439A3 | 2.65:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #6439A3 text on white | 7.90:1 | AAA | Lc 86.9 | Fine for body text |
| #6439A3 text on black | 2.65:1 | Fails | Lc -15.2 | Dividers and decoration only |
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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DDD2F8
oklch(88.5% 0.053 298.5)
-
Step 300
300
#C8B3F7
oklch(80.8% 0.097 298.4)
-
Step 400
400
#AD89F2
oklch(70.7% 0.152 298.2)
-
Step 500
500
#9A67ED
oklch(63% 0.195 298.2)
-
Step 600
600
#8649DC
oklch(55.6% 0.213 298.2)
-
Step 700
700
#7239BF
oklch(49.1% 0.198 298.2)
-
Step 800
800 (this color)
#6439A3
oklch(45.4% 0.163 298.3)
-
Step 900
900
#4C2D7B
oklch(37.8% 0.127 298.4)
-
Step 950
950
#2C1B48
oklch(27% 0.081 298.2)
#6439A3 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) | #0051A6 | 0.114 |
| Deuteranopia (no green cones) | #0050A1 | 0.115 |
| Tritanopia (no blue cones) | #555169 | 0.125 |
| Achromatopsia (no color) | #515151 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6439A3
#6439A3
oklch(45.4% 0.163 298.3)
- #515E00
#515E00
oklch(45.5% 0.106 118.6)
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 #6439A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.020
- Blueberry #464196 ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Grape #7209B7 ΔE 0.068
- Blurple #5539CC ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.074
Use #6439A3 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.