#6E73BC
Closest named color: Windows Blue (#3778BF). oklch(58.3% 0.111 279.4), rgb(110, 115, 188).
Aa
Black text reads best on this color (4.84:1).
About this color
#6E73BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.111 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.061 away. Black text reads best on it, at 4.84:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #6E73BC |
| RGB | rgb(110, 115, 188) |
| HSL | hsl(236, 37%, 58%) |
| OKLCH | oklch(58.3% 0.111 279.4) |
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 #6E73BC | 4.33:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #6E73BC | 4.84:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #6E73BC text on white | 4.33:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #6E73BC text on black | 4.84:1 | AA | Lc -31.7 | 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
#D5D8EC
oklch(88.6% 0.028 279)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400
#969CD2
oklch(70.8% 0.079 279.3)
-
Step 500
500
#7D82C7
oklch(63.1% 0.103 279.8)
-
Step 600
600 (this color)
#6E73BC
oklch(58.3% 0.111 279.4)
-
Step 700
700
#55599A
oklch(49.1% 0.103 279.2)
-
Step 800
800
#46497D
oklch(42.8% 0.086 279.6)
-
Step 900
900
#3A3D64
oklch(37.6% 0.067 279.3)
-
Step 950
950
#22243B
oklch(27% 0.043 279.3)
#6E73BC 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) | #5A7CBF | 0.032 |
| Deuteranopia (no green cones) | #5576BA | 0.033 |
| Tritanopia (no blue cones) | #56828E | 0.099 |
| Achromatopsia (no color) | #797979 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6E73BC
#6E73BC
oklch(58.3% 0.111 279.4)
- #8C7C1C
#8C7C1C
oklch(58.4% 0.111 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 #6E73BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.061
- Cool Blue #4984B8 ΔE 0.061
- Deep Lilac #966EBD ΔE 0.062
- Steel Blue #4682B4 ΔE 0.062
- Off Blue #5684AE ΔE 0.062
- Dark Lavender #856798 ΔE 0.065
- French Blue #436BAD ΔE 0.065
- Dusty Blue #5A86AD ΔE 0.066
Use #6E73BC 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.