#6584CD
Closest named color: Faded Blue (#658CBB). oklch(62.2% 0.116 265.7), rgb(101, 132, 205).
Aa
Black text reads best on this color (5.73:1).
About this color
#6584CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.116 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.040 away. Black text reads best on it, at 5.73:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.73:1 |
| White text | 3.66:1 |
Values
| HEX | #6584CD |
| RGB | rgb(101, 132, 205) |
| HSL | hsl(222, 51%, 60%) |
| OKLCH | oklch(62.2% 0.116 265.7) |
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 #6584CD | 3.66:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #6584CD | 5.73:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #6584CD text on white | 3.66:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #6584CD text on black | 5.73:1 | AA | Lc -37.6 | 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 500.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#AFC1E6
oklch(81% 0.056 264.7)
-
Step 400
400
#86A0DA
oklch(70.8% 0.09 265.6)
-
Step 500
500 (this color)
#6584CD
oklch(62.2% 0.116 265.7)
-
Step 600
600
#506FBD
oklch(55.5% 0.127 266.1)
-
Step 700
700
#405DA3
oklch(49.1% 0.117 265.4)
-
Step 800
800
#354C84
oklch(42.7% 0.097 265.6)
-
Step 900
900
#2E406A
oklch(37.7% 0.076 265.4)
-
Step 950
950
#1B263E
oklch(27.1% 0.048 264.7)
#6584CD 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) | #688BD0 | 0.020 |
| Deuteranopia (no green cones) | #5C81CB | 0.014 |
| Tritanopia (no blue cones) | #36949F | 0.105 |
| Achromatopsia (no color) | #868686 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6584CD
#6584CD
oklch(62.2% 0.116 265.7)
- #A68121
#A68121
oklch(62.3% 0.116 86)
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 #6584CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.040
- Soft Blue #6488EA ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.046
- Cool Blue #4984B8 ΔE 0.046
- Off Blue #5684AE ΔE 0.053
- Steel Blue #4682B4 ΔE 0.053
- Dusty Blue #5A86AD ΔE 0.054
- Cornflower Blue #6495ED ΔE 0.059
Use #6584CD 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.