#6567C5
Closest named color: Dark Periwinkle (#665FD1). oklch(55.8% 0.143 279.8), rgb(101, 103, 197).
Aa
White text reads best on this color (4.88:1).
About this color
#6567C5 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.143 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.029 away. White text reads best on it, at 4.88:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #6567C5 |
| RGB | rgb(101, 103, 197) |
| HSL | hsl(239, 45%, 58%) |
| OKLCH | oklch(55.8% 0.143 279.8) |
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 #6567C5 | 4.88:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #6567C5 | 4.29:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #6567C5 text on white | 4.88:1 | AA | Lc 73.7 | Content text, not long reading |
| #6567C5 text on black | 4.29:1 | AA large text | Lc -28.0 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F1
oklch(88.5% 0.036 280.4)
-
Step 300
300
#B8BDEA
oklch(81% 0.064 279.9)
-
Step 400
400
#9499E0
oklch(70.7% 0.104 280.3)
-
Step 500
500
#7A7FD7
oklch(63.1% 0.131 279.5)
-
Step 600
600 (this color)
#6567C5
oklch(55.8% 0.143 279.8)
-
Step 700
700
#5455AA
oklch(49.2% 0.133 279.8)
-
Step 800
800
#444689
oklch(42.7% 0.109 279.4)
-
Step 900
900
#393B6E
oklch(37.7% 0.086 279.7)
-
Step 950
950
#212340
oklch(27% 0.054 279.2)
#6567C5 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) | #3E75C8 | 0.053 |
| Deuteranopia (no green cones) | #366DC3 | 0.054 |
| Tritanopia (no blue cones) | #417B8C | 0.125 |
| Achromatopsia (no color) | #717171 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6567C5
#6567C5
oklch(55.8% 0.143 279.8)
- #847400
#847400
oklch(55.7% 0.116 99.7)
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 #6567C5, closest first.
No curated palette has a color within ΔE 0.04 of #6567C5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.029
- Slate Blue #6A5ACD ΔE 0.036
- Light Indigo #6D5ACF ΔE 0.038
- Iris #6258C4 ΔE 0.038
- Royal Blue #4169E1 ΔE 0.059
- French Blue #436BAD ΔE 0.060
- Windows Blue #3778BF ΔE 0.065
- Warm Blue #4B57DB ΔE 0.067
Use #6567C5 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.