#6E73CF
Closest named color: Dark Periwinkle (#665FD1). oklch(59.4% 0.139 278.9), rgb(110, 115, 207).
Aa
Black text reads best on this color (5.01:1).
About this color
#6E73CF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.139 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.053 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #6E73CF |
| RGB | rgb(110, 115, 207) |
| HSL | hsl(237, 50%, 62%) |
| OKLCH | oklch(59.4% 0.139 278.9) |
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 #6E73CF | 4.18:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #6E73CF | 5.01:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #6E73CF text on white | 4.18:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #6E73CF text on black | 5.01:1 | AA | Lc -33.0 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D3D7F2
oklch(88.4% 0.037 278.9)
-
Step 300
300
#B6BDED
oklch(80.9% 0.068 278.3)
-
Step 400
400
#9299E3
oklch(70.7% 0.108 279.1)
-
Step 500
500 (this color)
#6E73CF
oklch(59.4% 0.139 278.9)
-
Step 600
600
#6266C9
oklch(55.6% 0.15 278.6)
-
Step 700
700
#5254AE
oklch(49.2% 0.14 278.9)
-
Step 800
800
#43458D
oklch(42.7% 0.117 279)
-
Step 900
900
#383B70
oklch(37.7% 0.089 278.7)
-
Step 950
950
#212342
oklch(27.1% 0.057 279.1)
#6E73CF 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) | #4E80D2 | 0.047 |
| Deuteranopia (no green cones) | #4778CD | 0.047 |
| Tritanopia (no blue cones) | #4B8697 | 0.121 |
| Achromatopsia (no color) | #7C7C7C | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6E73CF
#6E73CF
oklch(59.4% 0.139 278.9)
- #917F00
#917F00
oklch(59.5% 0.123 99.3)
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 #6E73CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.053
- Medium Slate Blue #7B68EE ΔE 0.059
- Medium Purple #9370DB ΔE 0.059
- Cornflower #6A79F7 ΔE 0.060
- Soft Blue #6488EA ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.062
- Slate Blue #6A5ACD ΔE 0.063
- Deep Lilac #966EBD ΔE 0.066
Use #6E73CF 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.