#6778CE
Closest named color: Soft Blue (#6488EA). oklch(59.9% 0.132 273.3), rgb(103, 120, 206).
Aa
Black text reads best on this color (5.15:1).
About this color
#6778CE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.132 and its hue 273°. 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 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #6778CE |
| RGB | rgb(103, 120, 206) |
| HSL | hsl(230, 51%, 61%) |
| OKLCH | oklch(59.9% 0.132 273.3) |
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 #6778CE | 4.07:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #6778CE | 5.15:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #6778CE text on white | 4.07:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #6778CE text on black | 5.15:1 | AA | Lc -33.9 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300
#B3BEEB
oklch(80.8% 0.065 274.1)
-
Step 400
400
#8C9CE1
oklch(70.7% 0.103 273.5)
-
Step 500
500 (this color)
#6778CE
oklch(59.9% 0.132 273.3)
-
Step 600
600
#596AC6
oklch(55.6% 0.143 273)
-
Step 700
700
#4A58AB
oklch(49.2% 0.132 273.4)
-
Step 800
800
#3C488B
oklch(42.7% 0.111 273.2)
-
Step 900
900
#333D6F
oklch(37.7% 0.086 273.1)
-
Step 950
950
#1E2441
oklch(27% 0.055 273.4)
#6778CE 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) | #5582D1 | 0.031 |
| Deuteranopia (no green cones) | #4B7ACC | 0.032 |
| Tritanopia (no blue cones) | #3C8A99 | 0.117 |
| Achromatopsia (no color) | #7E7E7E | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6778CE
#6778CE
oklch(59.9% 0.132 273.3)
- #997D00
#997D00
oklch(59.9% 0.123 93.1)
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 #6778CE, 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 0.058
- Cool Blue #4984B8 ΔE 0.061
- Cornflower #6A79F7 ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.064
- Steel Blue #4682B4 ΔE 0.065
- Dark Sky Blue #448EE4 ΔE 0.065
- Faded Blue #658CBB ΔE 0.068
Use #6778CE 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.