#6575AE
Closest named color: Off Blue (#5684AE). oklch(57.3% 0.09 271.4), rgb(101, 117, 174).
Aa
Black text reads best on this color (4.70:1).
About this color
#6575AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.090 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.044 away. Black text reads best on it, at 4.70:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 4.70:1 |
| White text | 4.45:1 |
Values
| HEX | #6575AE |
| RGB | rgb(101, 117, 174) |
| HSL | hsl(227, 31%, 54%) |
| OKLCH | oklch(57.3% 0.09 271.4) |
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 #6575AE | 4.45:1 | AA large text | Lc -76.4 | Fine for body text |
| Black text on #6575AE | 4.70:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #6575AE text on white | 4.45:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #6575AE text on black | 4.70:1 | AA | Lc -30.8 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E9
oklch(88.6% 0.023 269.4)
-
Step 300
300
#B7C0DC
oklch(81% 0.041 271.4)
-
Step 400
400
#929FCA
oklch(70.8% 0.065 271.6)
-
Step 500
500
#7787BC
oklch(63.2% 0.082 271)
-
Step 600
600 (this color)
#6575AE
oklch(57.3% 0.09 271.4)
-
Step 700
700
#4F5D90
oklch(49% 0.084 271.4)
-
Step 800
800
#414C75
oklch(42.6% 0.07 271.7)
-
Step 900
900
#37405F
oklch(37.8% 0.055 271.2)
-
Step 950
950
#202537
oklch(26.8% 0.034 272)
#6575AE 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) | #617BB0 | 0.016 |
| Deuteranopia (no green cones) | #5B74AD | 0.014 |
| Tritanopia (no blue cones) | #4D818A | 0.081 |
| Achromatopsia (no color) | #777777 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6575AE
#6575AE
oklch(57.3% 0.09 271.4)
- #8C7633
#8C7633
oklch(57.3% 0.09 91.1)
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 #6575AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.044
- Stormy Blue #507B9C ΔE 0.045
- Steel Blue #4682B4 ΔE 0.045
- Dull Blue #49759C ΔE 0.046
- Cool Blue #4984B8 ΔE 0.047
- Dusty Blue #5A86AD ΔE 0.049
- Flat Blue #3C73A8 ΔE 0.049
- Cerulean #457B9D ΔE 0.052
Use #6575AE 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.