#6B78CD
Closest named color: Soft Blue (#6488EA). oklch(60.1% 0.13 275.2), rgb(107, 120, 205).
Aa
Black text reads best on this color (5.19:1).
About this color
#6B78CD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.130 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.054 away. Black text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #6B78CD |
| RGB | rgb(107, 120, 205) |
| HSL | hsl(232, 49%, 61%) |
| OKLCH | oklch(60.1% 0.13 275.2) |
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 #6B78CD | 4.04:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #6B78CD | 5.19:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #6B78CD text on white | 4.04:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #6B78CD text on black | 5.19:1 | AA | Lc -34.1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F1
oklch(88.5% 0.035 274.9)
-
Step 300
300
#B4BEEA
oklch(80.9% 0.063 274.9)
-
Step 400
400
#8E9BE0
oklch(70.6% 0.102 275.3)
-
Step 500
500 (this color)
#6B78CD
oklch(60.1% 0.13 275.2)
-
Step 600
600
#5D69C4
oklch(55.6% 0.14 275.2)
-
Step 700
700
#4D57AA
oklch(49.1% 0.132 275.3)
-
Step 800
800
#3F4889
oklch(42.8% 0.107 275)
-
Step 900
900
#353C6E
oklch(37.6% 0.086 275.5)
-
Step 950
950
#1F2440
oklch(27% 0.052 274.7)
#6B78CD 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) | #5782D0 | 0.033 |
| Deuteranopia (no green cones) | #4E7BCB | 0.035 |
| Tritanopia (no blue cones) | #468A98 | 0.116 |
| Achromatopsia (no color) | #7E7E7E | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B78CD
#6B78CD
oklch(60.1% 0.13 275.2)
- #977F00
#977F00
oklch(60.1% 0.124 95.7)
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 #6B78CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.054
- Windows Blue #3778BF ΔE 0.062
- Cool Blue #4984B8 ΔE 0.063
- Cornflower #6A79F7 ΔE 0.063
- Medium Purple #9370DB ΔE 0.066
- Dark Periwinkle #665FD1 ΔE 0.066
- Steel Blue #4682B4 ΔE 0.067
- Faded Blue #658CBB ΔE 0.067
Use #6B78CD 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.