#6583A2
Closest named color: Dusty Blue (#5A86AD). oklch(59.9% 0.059 249.7), rgb(101, 131, 162).
Aa
Black text reads best on this color (5.32:1).
About this color
#6583A2 is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.059 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.019 away. Black text reads best on it, at 5.32:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.32:1 |
| White text | 3.94:1 |
Values
| HEX | #6583A2 |
| RGB | rgb(101, 131, 162) |
| HSL | hsl(210, 25%, 52%) |
| OKLCH | oklch(59.9% 0.059 249.7) |
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 #6583A2 | 3.94:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #6583A2 | 5.32:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #6583A2 text on white | 3.94:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #6583A2 text on black | 5.32:1 | AA | Lc -34.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B3C3D3
oklch(81% 0.029 248.2)
-
Step 400
400
#8BA3BD
oklch(70.6% 0.047 250.6)
-
Step 500
500 (this color)
#6583A2
oklch(59.9% 0.059 249.7)
-
Step 600
600
#567698
oklch(55.5% 0.065 250.5)
-
Step 700
700
#466381
oklch(49% 0.059 249.9)
-
Step 800
800
#3A5169
oklch(42.6% 0.049 250.1)
-
Step 900
900
#324355
oklch(37.6% 0.038 250.3)
-
Step 950
950
#1D2732
oklch(26.8% 0.025 251.2)
#6583A2 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) | #7784A3 | 0.024 |
| Deuteranopia (no green cones) | #707DA1 | 0.021 |
| Tritanopia (no blue cones) | #518A8D | 0.050 |
| Achromatopsia (no color) | #808080 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6583A2
#6583A2
oklch(59.9% 0.059 249.7)
- #977A59
#977A59
oklch(59.9% 0.059 69.9)
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 #6583A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.019
- Off Blue #5684AE ΔE 0.023
- Steel #738595 ΔE 0.028
- Slate Gray #708090 ΔE 0.028
- Grey Blue #647D8E ΔE 0.031
- Light Slate Gray #778899 ΔE 0.033
- Lavender Gray #7E7F9A ΔE 0.034
- Stormy Blue #507B9C ΔE 0.037
Use #6583A2 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.