#6978CA
Closest named color: Windows Blue (#3778BF). oklch(59.8% 0.126 274.1), rgb(105, 120, 202).
Aa
Black text reads best on this color (5.14:1).
About this color
#6978CA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.126 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.058 away. Black text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #6978CA |
| RGB | rgb(105, 120, 202) |
| HSL | hsl(231, 48%, 60%) |
| OKLCH | oklch(59.8% 0.126 274.1) |
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 #6978CA | 4.08:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #6978CA | 5.14:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #6978CA text on white | 4.08:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #6978CA text on black | 5.14:1 | AA | Lc -33.8 | 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
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F0
oklch(88.5% 0.034 274.5)
-
Step 300
300
#B4BEE9
oklch(80.8% 0.062 274.7)
-
Step 400
400
#8D9CDE
oklch(70.7% 0.098 273.8)
-
Step 500
500 (this color)
#6978CA
oklch(59.8% 0.126 274.1)
-
Step 600
600
#5C6AC2
oklch(55.6% 0.137 274.3)
-
Step 700
700
#4C58A8
oklch(49.1% 0.128 274.3)
-
Step 800
800
#3E4888
oklch(42.6% 0.106 274.3)
-
Step 900
900
#353D6D
oklch(37.7% 0.082 274.6)
-
Step 950
950
#1F2440
oklch(27% 0.052 274.7)
#6978CA 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) | #5882CD | 0.031 |
| Deuteranopia (no green cones) | #4F7AC8 | 0.031 |
| Tritanopia (no blue cones) | #448997 | 0.112 |
| Achromatopsia (no color) | #7E7E7E | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6978CA
#6978CA
oklch(59.8% 0.126 274.1)
- #987D00
#987D00
oklch(59.8% 0.122 93.7)
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 #6978CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.058
- Soft Blue #6488EA ΔE 0.058
- Cool Blue #4984B8 ΔE 0.058
- Steel Blue #4682B4 ΔE 0.062
- Off Blue #5684AE ΔE 0.065
- Faded Blue #658CBB ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.067
- Cornflower #6A79F7 ΔE 0.068
Use #6978CA 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.