#6B73D9
Closest named color: Cornflower (#6A79F7). oklch(59.8% 0.153 277.3), rgb(107, 115, 217).
Aa
Black text reads best on this color (5.07:1).
About this color
#6B73D9 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.153 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.046 away. Black text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #6B73D9 |
| RGB | rgb(107, 115, 217) |
| HSL | hsl(236, 59%, 64%) |
| OKLCH | oklch(59.8% 0.153 277.3) |
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 #6B73D9 | 4.13:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #6B73D9 | 5.07:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #6B73D9 text on white | 4.13:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #6B73D9 text on black | 5.07:1 | AA | Lc -33.4 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B4BDF1
oklch(80.9% 0.074 277)
-
Step 400
400
#8E99EB
oklch(70.8% 0.12 277)
-
Step 500
500 (this color)
#6B73D9
oklch(59.8% 0.153 277.3)
-
Step 600
600
#5E64D2
oklch(55.6% 0.166 277.2)
-
Step 700
700
#4E52B6
oklch(49.1% 0.155 277.3)
-
Step 800
800
#404493
oklch(42.7% 0.128 277.4)
-
Step 900
900
#363A75
oklch(37.7% 0.099 277.6)
-
Step 950
950
#1F2245
oklch(26.9% 0.064 277.4)
#6B73D9 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) | #4681DD | 0.050 |
| Deuteranopia (no green cones) | #3B78D7 | 0.053 |
| Tritanopia (no blue cones) | #3D899B | 0.135 |
| Achromatopsia (no color) | #7D7D7D | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B73D9
#6B73D9
oklch(59.8% 0.153 277.3)
- #947F00
#947F00
oklch(59.8% 0.123 97.5)
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 #6B73D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.051
- Soft Blue #6488EA ΔE 0.055
- Medium Purple #9370DB ΔE 0.060
- Light Indigo #6D5ACF ΔE 0.061
- Royal Blue #4169E1 ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.062
Use #6B73D9 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.