#6638C0
Closest named color: Bluey Purple (#6241C7). oklch(47.8% 0.199 292.8), rgb(102, 56, 192).
Aa
White text reads best on this color (7.26:1).
About this color
#6638C0 is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.199 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.021 away. White text reads best on it, at 7.26:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.199) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.89:1 |
| White text | 7.26:1 |
Values
| HEX | #6638C0 |
| RGB | rgb(102, 56, 192) |
| HSL | hsl(260, 55%, 49%) |
| OKLCH | oklch(47.8% 0.199 292.8) |
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 #6638C0 | 7.26:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #6638C0 | 2.89:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #6638C0 text on white | 7.26:1 | AAA | Lc 84.5 | Fine for body text |
| #6638C0 text on black | 2.89:1 | Fails | Lc -17.5 | 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 700.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DAD3FA
oklch(88.5% 0.054 293.5)
-
Step 300
300
#C2B5FA
oklch(80.8% 0.097 292.7)
-
Step 400
400
#A58CF7
oklch(70.7% 0.154 292.8)
-
Step 500
500
#916AF3
oklch(63% 0.197 293)
-
Step 600
600
#7D4DE2
oklch(55.6% 0.214 292.9)
-
Step 700
700 (this color)
#6638C0
oklch(47.8% 0.199 292.8)
-
Step 800
800
#56339F
oklch(42.7% 0.165 292.9)
-
Step 900
900
#462F7E
oklch(37.7% 0.128 292.6)
-
Step 950
950
#291C4A
oklch(27% 0.082 293.1)
#6638C0 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) | #0058C4 | 0.114 |
| Deuteranopia (no green cones) | #0054BD | 0.113 |
| Tritanopia (no blue cones) | #4B5B78 | 0.157 |
| Achromatopsia (no color) | #575757 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6638C0
#6638C0
oklch(47.8% 0.199 292.8)
- #5E6300
#5E6300
oklch(47.9% 0.107 113.2)
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 #6638C0, closest first.
No curated palette has a color within ΔE 0.04 of #6638C0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.021
- Blue With A Hint Of Purple #533CC6 ΔE 0.035
- Blurple #5539CC ΔE 0.036
- Purple Blue #5D21D0 ΔE 0.046
- Burple #6832E3 ΔE 0.055
- Grape #7209B7 ΔE 0.060
- Purpley Blue #5F34E7 ΔE 0.063
- Rebecca Purple #663399 ΔE 0.063
Use #6638C0 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.