#6766D8
Closest named color: Dark Periwinkle (#665FD1). oklch(57% 0.17 279.9), rgb(103, 102, 216).
Aa
White text reads best on this color (4.69:1).
About this color
#6766D8 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.170 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.019 away. White text reads best on it, at 4.69:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.46:1 |
| White text | 4.69:1 |
Values
| HEX | #6766D8 |
| RGB | rgb(103, 102, 216) |
| HSL | hsl(241, 59%, 62%) |
| OKLCH | oklch(57% 0.17 279.9) |
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 #6766D8 | 4.69:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #6766D8 | 4.46:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #6766D8 text on white | 4.69:1 | AA | Lc 72.4 | Content text, not long reading |
| #6766D8 text on black | 4.46:1 | AA large text | Lc -29.3 | Dividers and decoration only |
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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F6
oklch(88.6% 0.043 279.7)
-
Step 300
300
#B6BCF2
oklch(80.9% 0.076 279.6)
-
Step 400
400
#9297EB
oklch(70.6% 0.122 280.2)
-
Step 500
500
#797BE5
oklch(63.1% 0.156 280.1)
-
Step 600
600 (this color)
#6766D8
oklch(57% 0.17 279.9)
-
Step 700
700
#5350B7
oklch(49.1% 0.158 280.1)
-
Step 800
800
#434294
oklch(42.6% 0.131 279.8)
-
Step 900
900
#383976
oklch(37.7% 0.102 279.6)
-
Step 950
950
#212245
oklch(27.1% 0.064 280)
#6766D8 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) | #2678DC | 0.071 |
| Deuteranopia (no green cones) | #156FD6 | 0.075 |
| Tritanopia (no blue cones) | #368095 | 0.148 |
| Achromatopsia (no color) | #747474 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6766D8
#6766D8
oklch(57% 0.17 279.9)
- #887800
#887800
oklch(57% 0.118 100)
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 #6766D8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.019
- Light Indigo #6D5ACF ΔE 0.031
- Slate Blue #6A5ACD ΔE 0.031
- Iris #6258C4 ΔE 0.045
- Medium Slate Blue #7B68EE ΔE 0.045
- Royal Blue #4169E1 ΔE 0.047
- Warm Blue #4B57DB ΔE 0.056
- Neon Blue #4361EE ΔE 0.059
Use #6766D8 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.