#6567CE
Closest named color: Dark Periwinkle (#665FD1). oklch(56.4% 0.155 279.3), rgb(101, 103, 206).
Aa
White text reads best on this color (4.78:1).
About this color
#6567CE is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.155 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.020 away. White text reads best on it, at 4.78:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.38:1 |
| White text | 4.78:1 |
Values
| HEX | #6567CE |
| RGB | rgb(101, 103, 206) |
| HSL | hsl(239, 52%, 60%) |
| OKLCH | oklch(56.4% 0.155 279.3) |
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 #6567CE | 4.78:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #6567CE | 4.38:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #6567CE text on white | 4.78:1 | AA | Lc 73.0 | Content text, not long reading |
| #6567CE text on black | 4.38:1 | AA large text | Lc -28.7 | 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
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D3D7F3
oklch(88.5% 0.039 279.1)
-
Step 300
300
#B7BCEE
oklch(80.8% 0.071 280.2)
-
Step 400
400
#9299E5
oklch(70.7% 0.111 279.1)
-
Step 500
500
#797DDE
oklch(63.1% 0.144 279.6)
-
Step 600
600 (this color)
#6567CE
oklch(56.4% 0.155 279.3)
-
Step 700
700
#5253B0
oklch(49.1% 0.145 279.2)
-
Step 800
800
#43448E
oklch(42.6% 0.12 279.5)
-
Step 900
900
#383A72
oklch(37.7% 0.094 279.3)
-
Step 950
950
#212243
oklch(26.9% 0.061 280.2)
#6567CE 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) | #3576D2 | 0.059 |
| Deuteranopia (no green cones) | #2B6ECC | 0.062 |
| Tritanopia (no blue cones) | #3A7E91 | 0.136 |
| Achromatopsia (no color) | #727272 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6567CE
#6567CE
oklch(56.4% 0.155 279.3)
- #877600
#877600
oklch(56.4% 0.117 99.2)
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 #6567CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.020
- Slate Blue #6A5ACD ΔE 0.031
- Light Indigo #6D5ACF ΔE 0.032
- Iris #6258C4 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.051
- Medium Slate Blue #7B68EE ΔE 0.059
- Warm Blue #4B57DB ΔE 0.060
- Neon Blue #4361EE ΔE 0.068
Use #6567CE 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.