#528B9F
Closest named color: Dusty Blue (#5A86AD). oklch(60.5% 0.067 222.6), rgb(82, 139, 159).
Aa
Black text reads best on this color (5.55:1).
About this color
#528B9F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.067 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.031 away. Black text reads best on it, at 5.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #528B9F |
| RGB | rgb(82, 139, 159) |
| HSL | hsl(196, 32%, 47%) |
| OKLCH | oklch(60.5% 0.067 222.6) |
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 #528B9F | 3.78:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #528B9F | 5.55:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #528B9F text on white | 3.78:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #528B9F text on black | 5.55:1 | AA | Lc -36.4 | 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
#E3EBEE
oklch(93.5% 0.009 222.1)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#ABC6D0
oklch(81% 0.032 222.1)
-
Step 400
400
#7DA8B8
oklch(70.6% 0.052 222.9)
-
Step 500
500 (this color)
#528B9F
oklch(60.5% 0.067 222.6)
-
Step 600
600
#3D7D92
oklch(55.6% 0.073 222)
-
Step 700
700
#2F697D
oklch(49.1% 0.068 223.5)
-
Step 800
800
#285665
oklch(42.7% 0.056 221.9)
-
Step 900
900
#254752
oklch(37.7% 0.044 221)
-
Step 950
950
#172A30
oklch(27.1% 0.027 220)
#528B9F 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) | #7F88A0 | 0.054 |
| Deuteranopia (no green cones) | #747F9F | 0.050 |
| Tritanopia (no blue cones) | #2B9191 | 0.044 |
| Achromatopsia (no color) | #838383 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528B9F
#528B9F
oklch(60.5% 0.067 222.6)
- #A57562
#A57562
oklch(60.6% 0.067 42.5)
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 #528B9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.031
- Off Blue #5684AE ΔE 0.036
- Steel #738595 ΔE 0.039
- Blue Grey #758DA3 ΔE 0.042
- Light Slate Gray #778899 ΔE 0.043
- Grey Blue #647D8E ΔE 0.043
- Steel Grey #6F828A ΔE 0.043
- Slate Gray #708090 ΔE 0.043
Use #528B9F 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.