#5B8CAF
Closest named color: Dusty Blue (#5A86AD). oklch(61.9% 0.075 240.6), rgb(91, 140, 175).
Aa
Black text reads best on this color (5.81:1).
About this color
#5B8CAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.075 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.017 away. Black text reads best on it, at 5.81:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.81:1 |
| White text | 3.61:1 |
Values
| HEX | #5B8CAF |
| RGB | rgb(91, 140, 175) |
| HSL | hsl(205, 34%, 52%) |
| OKLCH | oklch(61.9% 0.075 240.6) |
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 #5B8CAF | 3.61:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #5B8CAF | 5.81:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #5B8CAF text on white | 3.61:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #5B8CAF text on black | 5.81:1 | AA | Lc -38.1 | 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
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ACC4D6
oklch(80.8% 0.036 240.4)
-
Step 400
400
#80A6C2
oklch(70.7% 0.058 240.6)
-
Step 500
500 (this color)
#5B8CAF
oklch(61.9% 0.075 240.6)
-
Step 600
600
#44799F
oklch(55.5% 0.082 241.5)
-
Step 700
700
#356688
oklch(49.1% 0.076 241)
-
Step 800
800
#2D536E
oklch(42.6% 0.063 241.2)
-
Step 900
900
#284559
oklch(37.7% 0.049 240)
-
Step 950
950
#182834
oklch(26.8% 0.031 241.7)
#5B8CAF 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) | #7D8CB1 | 0.042 |
| Deuteranopia (no green cones) | #7183AE | 0.034 |
| Tritanopia (no blue cones) | #349598 | 0.061 |
| Achromatopsia (no color) | #878787 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8CAF
#5B8CAF
oklch(61.9% 0.075 240.6)
- #A77B57
#A77B57
oklch(61.8% 0.074 60.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #5B8CAF
These curated palettes and gradients contain exactly #5B8CAF. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.017
- Faded Blue #658CBB ΔE 0.023
- Off Blue #5684AE ΔE 0.024
- Silver Lake Blue #778DA9 ΔE 0.034
- Blue Grey #758DA3 ΔE 0.035
- Cool Blue #4984B8 ΔE 0.036
- Steel Blue #4682B4 ΔE 0.040
- Light Slate Gray #778899 ΔE 0.043
Use #5B8CAF 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.