#6C78E8
Closest named color: Cornflower (#6A79F7). oklch(61.8% 0.167 275.8), rgb(108, 120, 232).
Aa
Black text reads best on this color (5.48:1).
About this color
#6C78E8 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.167 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.022 away. Black text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.48:1 |
| White text | 3.82:1 |
Values
| HEX | #6C78E8 |
| RGB | rgb(108, 120, 232) |
| HSL | hsl(234, 73%, 67%) |
| OKLCH | oklch(61.8% 0.167 275.8) |
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 #6C78E8 | 3.82:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #6C78E8 | 5.48:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #6C78E8 text on white | 3.82:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #6C78E8 text on black | 5.48:1 | AA | Lc -36.1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B2BDF6
oklch(81% 0.082 275.9)
-
Step 400
400
#8A98F1
oklch(70.6% 0.131 275.7)
-
Step 500
500 (this color)
#6C78E8
oklch(61.8% 0.167 275.8)
-
Step 600
600
#5A62DB
oklch(55.6% 0.182 275.9)
-
Step 700
700
#4A50BE
oklch(49% 0.17 275.8)
-
Step 800
800
#3D439A
oklch(42.8% 0.14 275.8)
-
Step 900
900
#33397A
oklch(37.6% 0.109 275.9)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#6C78E8 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) | #4288EC | 0.054 |
| Deuteranopia (no green cones) | #337DE6 | 0.057 |
| Tritanopia (no blue cones) | #3091A5 | 0.148 |
| Achromatopsia (no color) | #828282 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C78E8
#6C78E8
oklch(61.8% 0.167 275.8)
- #9D8400
#9D8400
oklch(61.8% 0.127 95.6)
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 #6C78E8, closest first.
No curated palette has a color within ΔE 0.04 of #6C78E8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.022
- Soft Blue #6488EA ΔE 0.040
- Medium Slate Blue #7B68EE ΔE 0.043
- Medium Purple #9370DB ΔE 0.060
- Periwinkle #8E82FE ΔE 0.064
- Lavender Blue #8B88F8 ΔE 0.065
- Dark Sky Blue #448EE4 ΔE 0.066
- Royal Blue #4169E1 ΔE 0.068
Use #6C78E8 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.