#675AD3
Closest named color: Slate Blue (#6A5ACD). oklch(54.5% 0.179 283.6), rgb(103, 90, 211).
Aa
White text reads best on this color (5.27:1).
About this color
#675AD3 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.179 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.010 away. White text reads best on it, at 5.27:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.97:1 |
| White text | 5.27:1 |
Values
| HEX | #675AD3 |
| RGB | rgb(103, 90, 211) |
| HSL | hsl(246, 58%, 59%) |
| OKLCH | oklch(54.5% 0.179 283.6) |
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 #675AD3 | 5.27:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #675AD3 | 3.97:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #675AD3 text on white | 5.27:1 | AA | Lc 75.9 | Fine for body text |
| #675AD3 text on black | 3.97:1 | AA large text | Lc -25.9 | 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 600.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D5D6F7
oklch(88.6% 0.045 284.1)
-
Step 300
300
#B9BAF4
oklch(80.8% 0.082 283.6)
-
Step 400
400
#9795EE
oklch(70.8% 0.129 283.6)
-
Step 500
500
#7F77E8
oklch(63% 0.165 283.8)
-
Step 600
600 (this color)
#675AD3
oklch(54.5% 0.179 283.6)
-
Step 700
700
#594CBA
oklch(49.1% 0.167 283.8)
-
Step 800
800
#483F97
oklch(42.7% 0.139 283.4)
-
Step 900
900
#3C3778
oklch(37.8% 0.107 283.5)
-
Step 950
950
#232146
oklch(27.1% 0.067 283.4)
#675AD3 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) | #0070D7 | 0.090 |
| Deuteranopia (no green cones) | #0068D0 | 0.088 |
| Tritanopia (no blue cones) | #3D768E | 0.152 |
| Achromatopsia (no color) | #6C6C6C | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #675AD3
#675AD3
oklch(54.5% 0.179 283.6)
- #7C7200
#7C7200
oklch(54.4% 0.115 103.4)
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 #675AD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.010
- Light Indigo #6D5ACF ΔE 0.011
- Dark Periwinkle #665FD1 ΔE 0.012
- Iris #6258C4 ΔE 0.025
- Warm Blue #4B57DB ΔE 0.043
- Royal Blue #4169E1 ΔE 0.057
- Purpley #8756E4 ΔE 0.058
- Bluey Purple #6241C7 ΔE 0.058
Use #675AD3 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.