#6443BF
Closest named color: Bluey Purple (#6241C7). oklch(49% 0.184 290.2), rgb(100, 67, 191).
Aa
White text reads best on this color (6.78:1).
About this color
#6443BF is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.184 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.014 away. White text reads best on it, at 6.78:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #6443BF |
| RGB | rgb(100, 67, 191) |
| HSL | hsl(256, 49%, 51%) |
| OKLCH | oklch(49% 0.184 290.2) |
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 #6443BF | 6.78:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #6443BF | 3.09:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #6443BF text on white | 6.78:1 | AA | Lc 82.9 | Fine for body text |
| #6443BF text on black | 3.09:1 | AA large text | Lc -19.1 | 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
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D8D4F8
oklch(88.4% 0.049 290.4)
-
Step 300
300
#BFB7F7
oklch(80.8% 0.09 290)
-
Step 400
400
#A08FF3
oklch(70.6% 0.144 290)
-
Step 500
500
#8B70EE
oklch(63.1% 0.182 290)
-
Step 600
600
#7754DC
oklch(55.6% 0.198 290.3)
-
Step 700
700 (this color)
#6443BF
oklch(49% 0.184 290.2)
-
Step 800
800
#51389B
oklch(42.6% 0.154 289.9)
-
Step 900
900
#43327B
oklch(37.7% 0.119 290.2)
-
Step 950
950
#271E48
oklch(27% 0.075 290.3)
#6443BF 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) | #005DC3 | 0.103 |
| Deuteranopia (no green cones) | #0058BC | 0.102 |
| Tritanopia (no blue cones) | #47617B | 0.149 |
| Achromatopsia (no color) | #5B5B5B | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6443BF
#6443BF
oklch(49% 0.184 290.2)
- #656500
#656500
oklch(49.1% 0.107 109.8)
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 #6443BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.014
- Blue With A Hint Of Purple #533CC6 ΔE 0.036
- Blurple #5539CC ΔE 0.040
- Iris #6258C4 ΔE 0.047
- Slate Blue #6A5ACD ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.059
- Burple #6832E3 ΔE 0.061
- Purple Blue #5D21D0 ΔE 0.062
Use #6443BF 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.