#6743BB
Closest named color: Bluey Purple (#6241C7). oklch(49% 0.179 292.3), rgb(103, 67, 187).
Aa
White text reads best on this color (6.78:1).
About this color
#6743BB is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.179 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.022 away. White text reads best on it, at 6.78:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #6743BB |
| RGB | rgb(103, 67, 187) |
| HSL | hsl(258, 47%, 50%) |
| OKLCH | oklch(49% 0.179 292.3) |
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 #6743BB | 6.78:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #6743BB | 3.09:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #6743BB text on white | 6.78:1 | AA | Lc 82.9 | Fine for body text |
| #6743BB text on black | 3.09:1 | AA large text | Lc -19.0 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F7
oklch(88.5% 0.048 291.9)
-
Step 300
300
#C1B7F5
oklch(80.9% 0.087 291.7)
-
Step 400
400
#A38FEF
oklch(70.7% 0.138 292.1)
-
Step 500
500
#8F6FEA
oklch(63.1% 0.179 292.5)
-
Step 600
600
#7A54D8
oklch(55.6% 0.193 292.2)
-
Step 700
700 (this color)
#6743BB
oklch(49% 0.179 292.3)
-
Step 800
800
#543897
oklch(42.6% 0.148 292.6)
-
Step 900
900
#453279
oklch(37.8% 0.116 292.3)
-
Step 950
950
#281E47
oklch(27% 0.074 292)
#6743BB 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) | #005DBF | 0.108 |
| Deuteranopia (no green cones) | #0059B9 | 0.107 |
| Tritanopia (no blue cones) | #4E5F79 | 0.143 |
| Achromatopsia (no color) | #5B5B5B | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6743BB
#6743BB
oklch(49% 0.179 292.3)
- #626600
#626600
oklch(49% 0.109 112.4)
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 #6743BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.022
- Blue With A Hint Of Purple #533CC6 ΔE 0.043
- Blurple #5539CC ΔE 0.048
- Iris #6258C4 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.058
- Light Indigo #6D5ACF ΔE 0.060
- Rebecca Purple #663399 ΔE 0.063
- Purple Blue #5D21D0 ΔE 0.067
Use #6743BB 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.