#6D78DD
Closest named color: Cornflower (#6A79F7). oklch(61.2% 0.152 276.3), rgb(109, 120, 221).
Aa
Black text reads best on this color (5.38:1).
About this color
#6D78DD is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.152 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.039 away. Black text reads best on it, at 5.38:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.38:1 |
| White text | 3.90:1 |
Values
| HEX | #6D78DD |
| RGB | rgb(109, 120, 221) |
| HSL | hsl(234, 62%, 65%) |
| OKLCH | oklch(61.2% 0.152 276.3) |
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 #6D78DD | 3.90:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #6D78DD | 5.38:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #6D78DD text on white | 3.90:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #6D78DD text on black | 5.38:1 | AA | Lc -35.4 | 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
#D1D7F5
oklch(88.4% 0.042 276.6)
-
Step 300
300
#B3BDF1
oklch(80.9% 0.074 276.1)
-
Step 400
400
#8D99EA
oklch(70.6% 0.119 276.5)
-
Step 500
500 (this color)
#6D78DD
oklch(61.2% 0.152 276.3)
-
Step 600
600
#5C65D1
oklch(55.6% 0.164 276.1)
-
Step 700
700
#4C53B5
oklch(49% 0.153 276.1)
-
Step 800
800
#3E4493
oklch(42.6% 0.128 276.2)
-
Step 900
900
#353A75
oklch(37.6% 0.1 276.8)
-
Step 950
950
#1F2345
oklch(27.1% 0.063 276.3)
#6D78DD 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) | #4C86E1 | 0.047 |
| Deuteranopia (no green cones) | #417DDB | 0.049 |
| Tritanopia (no blue cones) | #3E8EA0 | 0.134 |
| Achromatopsia (no color) | #818181 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D78DD
#6D78DD
oklch(61.2% 0.152 276.3)
- #9A8200
#9A8200
oklch(61.1% 0.126 96)
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 #6D78DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.039
- Soft Blue #6488EA ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.051
- Medium Purple #9370DB ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.065
- Dark Sky Blue #448EE4 ΔE 0.065
- Royal Blue #4169E1 ΔE 0.070
- Lavender Blue #8B88F8 ΔE 0.071
Use #6D78DD 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.