#528AA5
Closest named color: Dusty Blue (#5A86AD). oklch(60.5% 0.072 230.5), rgb(82, 138, 165).
Aa
Black text reads best on this color (5.53:1).
About this color
#528AA5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.072 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.021 away. Black text reads best on it, at 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #528AA5 |
| RGB | rgb(82, 138, 165) |
| HSL | hsl(200, 34%, 48%) |
| OKLCH | oklch(60.5% 0.072 230.5) |
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 #528AA5 | 3.79:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #528AA5 | 5.53:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #528AA5 text on white | 3.79:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #528AA5 text on black | 5.53:1 | AA | Lc -36.3 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#AAC5D3
oklch(80.8% 0.035 230.3)
-
Step 400
400
#7DA8BD
oklch(70.8% 0.056 229.5)
-
Step 500
500 (this color)
#528AA5
oklch(60.5% 0.072 230.5)
-
Step 600
600
#3D7C99
oklch(55.7% 0.079 230.3)
-
Step 700
700
#2F6882
oklch(49.1% 0.072 230.5)
-
Step 800
800
#28556A
oklch(42.7% 0.06 230.7)
-
Step 900
900
#254656
oklch(37.6% 0.047 230.9)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#528AA5 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) | #7C88A6 | 0.050 |
| Deuteranopia (no green cones) | #717FA5 | 0.045 |
| Tritanopia (no blue cones) | #269293 | 0.053 |
| Achromatopsia (no color) | #838383 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528AA5
#528AA5
oklch(60.5% 0.072 230.5)
- #A5755A
#A5755A
oklch(60.5% 0.072 50.3)
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 #528AA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.021
- Off Blue #5684AE ΔE 0.026
- Cool Blue #4984B8 ΔE 0.039
- Steel Blue #4682B4 ΔE 0.040
- Faded Blue #658CBB ΔE 0.041
- Steel #738595 ΔE 0.042
- Blue NCS #118AB2 ΔE 0.042
- Blue Grey #758DA3 ΔE 0.042
Use #528AA5 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.