#6771C3
Closest named color: Dark Periwinkle (#665FD1). oklch(57.8% 0.126 276.5), rgb(103, 113, 195).
Aa
Black text reads best on this color (4.72:1).
About this color
#6771C3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.126 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.054 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #6771C3 |
| RGB | rgb(103, 113, 195) |
| HSL | hsl(233, 43%, 58%) |
| OKLCH | oklch(57.8% 0.126 276.5) |
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 #6771C3 | 4.44:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #6771C3 | 4.72:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #6771C3 text on white | 4.44:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #6771C3 text on black | 4.72:1 | AA | Lc -31.0 | 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 600.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BEE6
oklch(80.9% 0.057 276.2)
-
Step 400
400
#919CD9
oklch(70.7% 0.09 276)
-
Step 500
500
#7782CF
oklch(63.1% 0.116 276.4)
-
Step 600
600 (this color)
#6771C3
oklch(57.8% 0.126 276.5)
-
Step 700
700
#5058A2
oklch(49% 0.118 276.5)
-
Step 800
800
#424983
oklch(42.8% 0.096 276.4)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#6771C3 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) | #517BC6 | 0.034 |
| Deuteranopia (no green cones) | #4974C1 | 0.036 |
| Tritanopia (no blue cones) | #458290 | 0.112 |
| Achromatopsia (no color) | #787878 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6771C3
#6771C3
oklch(57.8% 0.126 276.5)
- #8E7900
#8E7900
oklch(57.8% 0.119 96.9)
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 #6771C3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.054
- Windows Blue #3778BF ΔE 0.054
- French Blue #436BAD ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.062
- Light Indigo #6D5ACF ΔE 0.063
- Cool Blue #4984B8 ΔE 0.065
- Iris #6258C4 ΔE 0.065
- Steel Blue #4682B4 ΔE 0.066
Use #6771C3 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.