#528AD2
Closest named color: Dark Sky Blue (#448EE4). oklch(62.7% 0.124 255.4), rgb(82, 138, 210).
Aa
Black text reads best on this color (5.92:1).
About this color
#528AD2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.124 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.028 away. Black text reads best on it, at 5.92:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.92:1 |
| White text | 3.54:1 |
Values
| HEX | #528AD2 |
| RGB | rgb(82, 138, 210) |
| HSL | hsl(214, 59%, 57%) |
| OKLCH | oklch(62.7% 0.124 255.4) |
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 #528AD2 | 3.54:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #528AD2 | 5.92:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #528AD2 text on white | 3.54:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #528AD2 text on black | 5.92:1 | AA | Lc -38.9 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A7C3E8
oklch(80.9% 0.061 255.5)
-
Step 400
400
#77A3DD
oklch(70.7% 0.098 255.6)
-
Step 500
500 (this color)
#528AD2
oklch(62.7% 0.124 255.4)
-
Step 600
600
#3774C0
oklch(55.6% 0.134 255.3)
-
Step 700
700
#2961A6
oklch(49.2% 0.125 255.3)
-
Step 800
800
#234F87
oklch(42.7% 0.105 255.7)
-
Step 900
900
#22426C
oklch(37.7% 0.082 256)
-
Step 950
950
#14273F
oklch(27% 0.052 255)
#528AD2 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) | #6B8FD5 | 0.032 |
| Deuteranopia (no green cones) | #5A83D1 | 0.019 |
| Tritanopia (no blue cones) | #009AA4 | 0.103 |
| Achromatopsia (no color) | #888888 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528AD2
#528AD2
oklch(62.7% 0.124 255.4)
- #B37C1A
#B37C1A
oklch(62.7% 0.124 75.5)
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 #528AD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.028
- Faded Blue #658CBB ΔE 0.041
- Cool Blue #4984B8 ΔE 0.042
- Soft Blue #6488EA ΔE 0.043
- Water Blue #0E87CC ΔE 0.044
- Chefchaouen Blue #4895EF ΔE 0.047
- Steel Blue #4682B4 ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.052
Use #528AD2 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.