#745BBC
Closest named color: Slate Blue (#6A5ACD). oklch(54.3% 0.147 292.7), rgb(116, 91, 188).
Aa
White text reads best on this color (5.29:1).
About this color
#745BBC is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.147 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.032 away. White text reads best on it, at 5.29:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #745BBC |
| RGB | rgb(116, 91, 188) |
| HSL | hsl(255, 42%, 55%) |
| OKLCH | oklch(54.3% 0.147 292.7) |
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 #745BBC | 5.29:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #745BBC | 3.96:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #745BBC text on white | 5.29:1 | AA | Lc 76.1 | Fine for body text |
| #745BBC text on black | 3.96:1 | AA large text | Lc -25.6 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#D9D5F0
oklch(88.4% 0.037 292.4)
-
Step 300
300
#C1B9E8
oklch(80.8% 0.066 292.7)
-
Step 400
400
#A394DD
oklch(70.7% 0.106 292.9)
-
Step 500
500
#8D78D3
oklch(63.1% 0.135 292.7)
-
Step 600
600 (this color)
#745BBC
oklch(54.3% 0.147 292.7)
-
Step 700
700
#654EA6
oklch(49.1% 0.136 292.7)
-
Step 800
800
#524087
oklch(42.7% 0.114 292.6)
-
Step 900
900
#44376C
oklch(37.7% 0.089 292.9)
-
Step 950
950
#28213F
oklch(27.1% 0.055 293.1)
#745BBC 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) | #336DBF | 0.087 |
| Deuteranopia (no green cones) | #386ABA | 0.083 |
| Tritanopia (no blue cones) | #626F83 | 0.119 |
| Achromatopsia (no color) | #6B6B6B | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #745BBC
#745BBC
oklch(54.3% 0.147 292.7)
- #717600
#717600
oklch(54.3% 0.121 112.7)
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 #745BBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.032
- Light Indigo #6D5ACF ΔE 0.032
- Iris #6258C4 ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.039
- Deep Lavender #8D5EB7 ΔE 0.045
- Amethyst #9B5FC0 ΔE 0.069
- Purpley #8756E4 ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.072
Use #745BBC 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.