#528FAA
Closest named color: Dusty Blue (#5A86AD). oklch(61.9% 0.075 228.5), rgb(82, 143, 170).
Aa
Black text reads best on this color (5.86:1).
About this color
#528FAA is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.075 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.028 away. Black text reads best on it, at 5.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.86:1 |
| White text | 3.57:1 |
Values
| HEX | #528FAA |
| RGB | rgb(82, 143, 170) |
| HSL | hsl(198, 35%, 49%) |
| OKLCH | oklch(61.9% 0.075 228.5) |
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 #528FAA | 3.57:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #528FAA | 5.86:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #528FAA text on white | 3.57:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #528FAA text on black | 5.86:1 | AA | Lc -38.4 | 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
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D4
oklch(81% 0.037 228.5)
-
Step 400
400
#7AA8BE
oklch(70.7% 0.059 229.1)
-
Step 500
500 (this color)
#528FAA
oklch(61.9% 0.075 228.5)
-
Step 600
600
#387C99
oklch(55.5% 0.082 228.8)
-
Step 700
700
#2A6983
oklch(49.2% 0.076 228.5)
-
Step 800
800
#24566A
oklch(42.8% 0.063 227.3)
-
Step 900
900
#234756
oklch(37.8% 0.049 227.3)
-
Step 950
950
#152932
oklch(26.8% 0.031 228.6)
#528FAA 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) | #818DAB | 0.055 |
| Deuteranopia (no green cones) | #7483AA | 0.049 |
| Tritanopia (no blue cones) | #1E9798 | 0.054 |
| Achromatopsia (no color) | #878787 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528FAA
#528FAA
oklch(61.9% 0.075 228.5)
- #AC785E
#AC785E
oklch(61.9% 0.076 47.4)
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 #528FAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.028
- Off Blue #5684AE ΔE 0.034
- Faded Blue #658CBB ΔE 0.037
- Blue Grey #758DA3 ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.041
- Cool Blue #4984B8 ΔE 0.045
- Blue NCS #118AB2 ΔE 0.046
- Light Slate Gray #778899 ΔE 0.046
Use #528FAA 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.