#6438AA
Closest named color: Rebecca Purple (#663399). oklch(45.8% 0.173 296.7), rgb(100, 56, 170).
Aa
White text reads best on this color (7.81:1).
About this color
#6438AA is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.173 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 7.81:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.68:1 |
| White text | 7.81:1 |
Values
| HEX | #6438AA |
| RGB | rgb(100, 56, 170) |
| HSL | hsl(263, 50%, 44%) |
| OKLCH | oklch(45.8% 0.173 296.7) |
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 #6438AA | 7.81:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #6438AA | 2.68:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #6438AA text on white | 7.81:1 | AAA | Lc 86.6 | Fine for body text |
| #6438AA text on black | 2.68:1 | Fails | Lc -15.5 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FC
oklch(93.5% 0.03 296.2)
-
Step 200
200
#DCD2FB
oklch(88.5% 0.057 296.4)
-
Step 300
300
#C7B3FB
oklch(80.9% 0.102 296.8)
-
Step 400
400
#AC88F8
oklch(70.7% 0.162 296.9)
-
Step 500
500
#9965F5
oklch(63.1% 0.207 296.7)
-
Step 600
600
#8546E4
oklch(55.7% 0.225 296.6)
-
Step 700
700
#7135C6
oklch(49.1% 0.21 296.7)
-
Step 800
800 (this color)
#6438AA
oklch(45.8% 0.173 296.7)
-
Step 900
900
#4B2B7F
oklch(37.7% 0.135 296.9)
-
Step 950
950
#2B1A4A
oklch(26.8% 0.086 296.5)
#6438AA 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) | #0053AD | 0.115 |
| Deuteranopia (no green cones) | #0051A8 | 0.115 |
| Tritanopia (no blue cones) | #52536C | 0.134 |
| Achromatopsia (no color) | #525252 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6438AA
#6438AA
oklch(45.8% 0.173 296.7)
- #545E00
#545E00
oklch(45.7% 0.105 116.7)
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 #6438AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Bluey Purple #6241C7 ΔE 0.050
- Blue With A Hint Of Purple #533CC6 ΔE 0.055
- Blurple #5539CC ΔE 0.062
- Grape #7209B7 ΔE 0.062
- Blueberry #464196 ΔE 0.063
- Chrysanthemum #560BAD ΔE 0.070
- Purple Blue #5D21D0 ΔE 0.070
Use #6438AA 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.