#6A70BD
Closest named color: Windows Blue (#3778BF). oklch(57.5% 0.118 278.6), rgb(106, 112, 189).
Aa
Black text reads best on this color (4.66:1).
About this color
#6A70BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.118 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.057 away. Black text reads best on it, at 4.66:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #6A70BD |
| RGB | rgb(106, 112, 189) |
| HSL | hsl(236, 39%, 58%) |
| OKLCH | oklch(57.5% 0.118 278.6) |
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 #6A70BD | 4.50:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #6A70BD | 4.66:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #6A70BD text on white | 4.50:1 | AA | Lc 71.1 | Content text, not long reading |
| #6A70BD text on black | 4.66:1 | AA | Lc -30.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8ED
oklch(88.6% 0.029 277.2)
-
Step 300
300
#B8BEE3
oklch(80.9% 0.053 277.9)
-
Step 400
400
#949BD5
oklch(70.6% 0.085 278.7)
-
Step 500
500
#7B82CA
oklch(63.1% 0.108 278.6)
-
Step 600
600 (this color)
#6A70BD
oklch(57.5% 0.118 278.6)
-
Step 700
700
#54589D
oklch(49% 0.109 279)
-
Step 800
800
#444980
oklch(42.8% 0.091 277.9)
-
Step 900
900
#393D66
oklch(37.6% 0.07 278.2)
-
Step 950
950
#22243C
oklch(27.1% 0.045 279.3)
#6A70BD 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) | #547AC0 | 0.035 |
| Deuteranopia (no green cones) | #4E74BB | 0.036 |
| Tritanopia (no blue cones) | #4F808D | 0.104 |
| Achromatopsia (no color) | #777777 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A70BD
#6A70BD
oklch(57.5% 0.118 278.6)
- #8B7904
#8B7904
oklch(57.5% 0.118 98.7)
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 #6A70BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.058
- French Blue #436BAD ΔE 0.059
- Slate Blue #6A5ACD ΔE 0.064
- Light Indigo #6D5ACF ΔE 0.065
- Cool Blue #4984B8 ΔE 0.065
- Steel Blue #4682B4 ΔE 0.065
- Flat Blue #3C73A8 ΔE 0.066
Use #6A70BD 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.