#6583AF
Closest named color: Dusty Blue (#5A86AD). oklch(60.5% 0.076 257.8), rgb(101, 131, 175).
Aa
Black text reads best on this color (5.41:1).
About this color
#6583AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.076 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.015 away. Black text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #6583AF |
| RGB | rgb(101, 131, 175) |
| HSL | hsl(216, 32%, 54%) |
| OKLCH | oklch(60.5% 0.076 257.8) |
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 #6583AF | 3.87:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #6583AF | 5.41:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #6583AF text on white | 3.87:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #6583AF text on black | 5.41:1 | AA | Lc -35.5 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B2C2D9
oklch(80.9% 0.037 257.4)
-
Step 400
400
#8AA2C6
oklch(70.7% 0.059 258.4)
-
Step 500
500 (this color)
#6583AF
oklch(60.5% 0.076 257.8)
-
Step 600
600
#5474A3
oklch(55.4% 0.082 257.9)
-
Step 700
700
#45628C
oklch(49.2% 0.076 257.6)
-
Step 800
800
#395072
oklch(42.8% 0.064 258)
-
Step 900
900
#31425C
oklch(37.6% 0.05 258.7)
-
Step 950
950
#1D2736
oklch(27% 0.031 258.3)
#6583AF 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) | #7385B1 | 0.020 |
| Deuteranopia (no green cones) | #6A7EAE | 0.014 |
| Tritanopia (no blue cones) | #4A8D92 | 0.068 |
| Achromatopsia (no color) | #818181 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6583AF
#6583AF
oklch(60.5% 0.076 257.8)
- #9B7C4C
#9B7C4C
oklch(60.5% 0.076 77.5)
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 #6583AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.015
- Off Blue #5684AE ΔE 0.017
- Faded Blue #658CBB ΔE 0.027
- Cool Blue #4984B8 ΔE 0.031
- Steel Blue #4682B4 ΔE 0.034
- Silver Lake Blue #778DA9 ΔE 0.041
- Lavender Gray #7E7F9A ΔE 0.043
- Stormy Blue #507B9C ΔE 0.044
Use #6583AF 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.