#6575C2
Closest named color: Windows Blue (#3778BF). oklch(58.4% 0.119 273.3), rgb(101, 117, 194).
Aa
Black text reads best on this color (4.87:1).
About this color
#6575C2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.119 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.049 away. Black text reads best on it, at 4.87:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.87:1 |
| White text | 4.30:1 |
Values
| HEX | #6575C2 |
| RGB | rgb(101, 117, 194) |
| HSL | hsl(230, 43%, 58%) |
| OKLCH | oklch(58.4% 0.119 273.3) |
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 #6575C2 | 4.30:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #6575C2 | 4.87:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #6575C2 text on white | 4.30:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #6575C2 text on black | 4.87:1 | AA | Lc -32.0 | 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
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EE
oklch(88.4% 0.031 273.6)
-
Step 300
300
#B5BFE4
oklch(80.9% 0.053 273.3)
-
Step 400
400
#8F9DD7
oklch(70.7% 0.087 273.5)
-
Step 500
500
#7484CC
oklch(63.1% 0.11 273.3)
-
Step 600
600 (this color)
#6575C2
oklch(58.4% 0.119 273.3)
-
Step 700
700
#4D5A9F
oklch(49% 0.111 273.6)
-
Step 800
800
#3F4A81
oklch(42.7% 0.092 273.4)
-
Step 900
900
#353E68
oklch(37.7% 0.073 273.3)
-
Step 950
950
#1F253D
oklch(27.1% 0.046 272.4)
#6575C2 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) | #587EC5 | 0.027 |
| Deuteranopia (no green cones) | #4F76C0 | 0.027 |
| Tritanopia (no blue cones) | #418592 | 0.106 |
| Achromatopsia (no color) | #7A7A7A | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6575C2
#6575C2
oklch(58.4% 0.119 273.3)
- #947901
#947901
oklch(58.5% 0.119 93.2)
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 #6575C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.049
- Cool Blue #4984B8 ΔE 0.054
- Steel Blue #4682B4 ΔE 0.056
- Off Blue #5684AE ΔE 0.060
- French Blue #436BAD ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.064
- Flat Blue #3C73A8 ΔE 0.064
- Dusty Blue #5A86AD ΔE 0.065
Use #6575C2 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.