#528BF8
Closest named color: Soft Blue (#6488EA). oklch(65.2% 0.173 262), rgb(82, 139, 248).
Aa
Black text reads best on this color (6.40:1).
About this color
#528BF8 is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.173 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.026 away. Black text reads best on it, at 6.40:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.40:1 |
| White text | 3.27:1 |
Values
| HEX | #528BF8 |
| RGB | rgb(82, 139, 248) |
| HSL | hsl(219, 92%, 65%) |
| OKLCH | oklch(65.2% 0.173 262) |
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 #528BF8 | 3.27:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #528BF8 | 6.40:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #528BF8 text on white | 3.27:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #528BF8 text on black | 6.40:1 | AA | Lc -41.9 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAF9
oklch(88.5% 0.047 261.4)
-
Step 300
300
#A3C1F8
oklch(80.8% 0.085 262.3)
-
Step 400
400
#719FF5
oklch(70.7% 0.136 262.1)
-
Step 500
500 (this color)
#528BF8
oklch(65.2% 0.173 262)
-
Step 600
600
#306BDF
oklch(55.6% 0.188 262)
-
Step 700
700
#2358C2
oklch(49% 0.176 262.1)
-
Step 800
800
#1E499D
oklch(42.7% 0.145 261.9)
-
Step 900
900
#1E3E7D
oklch(37.7% 0.114 262.2)
-
Step 950
950
#122549
oklch(27% 0.071 261.9)
#528BF8 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) | #5696FC | 0.029 |
| Deuteranopia (no green cones) | #3887F6 | 0.025 |
| Tritanopia (no blue cones) | #00A4B5 | 0.141 |
| Achromatopsia (no color) | #8E8E8E | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528BF8
#528BF8
oklch(65.2% 0.173 262)
- #B88600
#B88600
oklch(65.2% 0.134 82.1)
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 #528BF8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.032
- Dodger Blue #1E90FF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.039
- Cornflower #6A79F7 ΔE 0.048
- Clear Blue #247AFD ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.067
Use #528BF8 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.