#6178DF
Closest named color: Cornflower (#6A79F7). oklch(60.5% 0.158 271.5), rgb(97, 120, 223).
Aa
Black text reads best on this color (5.26:1).
About this color
#6178DF is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.158 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.038 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.26:1 |
| White text | 3.99:1 |
Values
| HEX | #6178DF |
| RGB | rgb(97, 120, 223) |
| HSL | hsl(229, 66%, 63%) |
| OKLCH | oklch(60.5% 0.158 271.5) |
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 #6178DF | 3.99:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #6178DF | 5.26:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #6178DF text on white | 3.99:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #6178DF text on black | 5.26:1 | AA | Lc -34.6 | 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
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AEBEF3
oklch(80.8% 0.077 271.5)
-
Step 400
400
#859BEE
oklch(70.7% 0.124 271.6)
-
Step 500
500 (this color)
#6178DF
oklch(60.5% 0.158 271.5)
-
Step 600
600
#5167D6
oklch(55.6% 0.171 271.3)
-
Step 700
700
#4255B9
oklch(49.1% 0.158 271.3)
-
Step 800
800
#364696
oklch(42.7% 0.132 271.3)
-
Step 900
900
#2F3C77
oklch(37.8% 0.101 271.4)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#6178DF 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) | #4885E3 | 0.038 |
| Deuteranopia (no green cones) | #367ADD | 0.042 |
| Tritanopia (no blue cones) | #0C8FA1 | 0.140 |
| Achromatopsia (no color) | #7F7F7F | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6178DF
#6178DF
oklch(60.5% 0.158 271.5)
- #9D7E00
#9D7E00
oklch(60.5% 0.124 91.4)
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 #6178DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.038
- Soft Blue #6488EA ΔE 0.043
- Medium Slate Blue #7B68EE ΔE 0.056
- Royal Blue #4169E1 ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.059
- Dark Periwinkle #665FD1 ΔE 0.062
- Clear Blue #247AFD ΔE 0.066
- Windows Blue #3778BF ΔE 0.068
Use #6178DF 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.