#6576C8
Closest named color: Windows Blue (#3778BF). oklch(59% 0.127 273.1), rgb(101, 118, 200).
Aa
Black text reads best on this color (4.97:1).
About this color
#6576C8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.127 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.051 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.97:1 |
| White text | 4.21:1 |
Values
| HEX | #6576C8 |
| RGB | rgb(101, 118, 200) |
| HSL | hsl(230, 47%, 59%) |
| OKLCH | oklch(59% 0.127 273.1) |
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 #6576C8 | 4.21:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #6576C8 | 4.97:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #6576C8 text on white | 4.21:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #6576C8 text on black | 4.97:1 | AA | Lc -32.7 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EF
oklch(88.5% 0.032 274.1)
-
Step 300
300
#B4BFE6
oklch(80.9% 0.056 272.7)
-
Step 400
400
#8E9DDA
oklch(70.8% 0.091 273.2)
-
Step 500
500
#7284D0
oklch(63.2% 0.116 272.6)
-
Step 600
600 (this color)
#6576C8
oklch(59% 0.127 273.1)
-
Step 700
700
#4B5AA3
oklch(49.2% 0.118 272.6)
-
Step 800
800
#3E4A84
oklch(42.8% 0.097 272.9)
-
Step 900
900
#343E6A
oklch(37.7% 0.076 272.6)
-
Step 950
950
#1F243E
oklch(26.9% 0.049 274.4)
#6576C8 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) | #5680CB | 0.029 |
| Deuteranopia (no green cones) | #4C77C6 | 0.030 |
| Tritanopia (no blue cones) | #3D8795 | 0.112 |
| Achromatopsia (no color) | #7B7B7B | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6576C8
#6576C8
oklch(59% 0.127 273.1)
- #967A00
#967A00
oklch(58.9% 0.121 92.7)
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 #6576C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.051
- Cool Blue #4984B8 ΔE 0.057
- Steel Blue #4682B4 ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.062
- Soft Blue #6488EA ΔE 0.063
- Off Blue #5684AE ΔE 0.065
- French Blue #436BAD ΔE 0.067
- Faded Blue #658CBB ΔE 0.069
Use #6576C8 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.