#527FAA
Closest named color: Off Blue (#5684AE). oklch(58.2% 0.083 248.3), rgb(82, 127, 170).
Aa
Black text reads best on this color (4.97:1).
About this color
#527FAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.083 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.016 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 4.97:1 |
| White text | 4.22:1 |
Values
| HEX | #527FAA |
| RGB | rgb(82, 127, 170) |
| HSL | hsl(209, 35%, 49%) |
| OKLCH | oklch(58.2% 0.083 248.3) |
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 #527FAA | 4.22:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #527FAA | 4.97:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #527FAA text on white | 4.22:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #527FAA text on black | 4.97:1 | AA | Lc -32.6 | 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 600.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300
#AEC3D8
oklch(80.8% 0.038 248.3)
-
Step 400
400
#84A4C5
oklch(70.7% 0.06 249.5)
-
Step 500
500
#648EB6
oklch(63.2% 0.076 247.9)
-
Step 600
600 (this color)
#527FAA
oklch(58.2% 0.083 248.3)
-
Step 700
700
#3B648B
oklch(49.1% 0.078 248.5)
-
Step 800
800
#325270
oklch(42.8% 0.063 248)
-
Step 900
900
#2C445B
oklch(37.8% 0.05 248.2)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#527FAA 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) | #6D80AC | 0.033 |
| Deuteranopia (no green cones) | #6277A9 | 0.027 |
| Tritanopia (no blue cones) | #24898E | 0.071 |
| Achromatopsia (no color) | #7B7B7B | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #527FAA
#527FAA
oklch(58.2% 0.083 248.3)
- #9B7142
#9B7142
oklch(58.1% 0.083 68.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #527FAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.016
- Steel Blue #4682B4 ΔE 0.018
- Stormy Blue #507B9C ΔE 0.023
- Dusty Blue #5A86AD ΔE 0.023
- Cool Blue #4984B8 ΔE 0.023
- Cerulean #457B9D ΔE 0.027
- Dull Blue #49759C ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.044
Use #527FAA 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.