#6D71CE
Closest named color: Dark Periwinkle (#665FD1). oklch(58.9% 0.14 279.3), rgb(109, 113, 206).
Aa
Black text reads best on this color (4.90:1).
About this color
#6D71CE is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.140 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.048 away. Black text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.90:1 |
| White text | 4.28:1 |
Values
| HEX | #6D71CE |
| RGB | rgb(109, 113, 206) |
| HSL | hsl(238, 50%, 62%) |
| OKLCH | oklch(58.9% 0.14 279.3) |
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 #6D71CE | 4.28:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #6D71CE | 4.90:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #6D71CE text on white | 4.28:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #6D71CE text on black | 4.90:1 | AA | Lc -32.2 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F1
oklch(88.5% 0.036 280.4)
-
Step 300
300
#B7BDEA
oklch(80.9% 0.064 278.9)
-
Step 400
400
#939ADF
oklch(70.7% 0.101 279)
-
Step 500
500
#7A7FD6
oklch(63.1% 0.13 279.5)
-
Step 600
600 (this color)
#6D71CE
oklch(58.9% 0.14 279.3)
-
Step 700
700
#5355A8
oklch(49% 0.13 279.4)
-
Step 800
800
#444688
oklch(42.7% 0.107 279.5)
-
Step 900
900
#393B6D
oklch(37.6% 0.084 279.8)
-
Step 950
950
#212340
oklch(27% 0.054 279.2)
#6D71CE 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) | #4B7ED1 | 0.048 |
| Deuteranopia (no green cones) | #4477CC | 0.049 |
| Tritanopia (no blue cones) | #4A8595 | 0.124 |
| Achromatopsia (no color) | #7A7A7A | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D71CE
#6D71CE
oklch(58.9% 0.14 279.3)
- #8F7D00
#8F7D00
oklch(58.8% 0.122 99.1)
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 #6D71CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.048
- Light Indigo #6D5ACF ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.058
- Medium Slate Blue #7B68EE ΔE 0.059
- Medium Purple #9370DB ΔE 0.061
- Cornflower #6A79F7 ΔE 0.062
- Soft Blue #6488EA ΔE 0.066
- Iris #6258C4 ΔE 0.067
Use #6D71CE 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.