#525BE9
Closest named color: Neon Blue (#4361EE). oklch(54.9% 0.211 274.3), rgb(82, 91, 233).
Aa
White text reads best on this color (5.20:1).
About this color
#525BE9 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.211 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.021 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.211) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #525BE9 |
| RGB | rgb(82, 91, 233) |
| HSL | hsl(236, 77%, 62%) |
| OKLCH | oklch(54.9% 0.211 274.3) |
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 #525BE9 | 5.20:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #525BE9 | 4.03:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #525BE9 text on white | 5.20:1 | AA | Lc 75.3 | Fine for body text |
| #525BE9 text on black | 4.03:1 | AA large text | Lc -26.4 | Dividers and decoration only |
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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FD
oklch(88.4% 0.053 274.8)
-
Step 300
300
#AEBCFE
oklch(80.8% 0.095 274.8)
-
Step 400
400
#8597FE
oklch(70.7% 0.151 274.4)
-
Step 500
500
#6979FC
oklch(63.1% 0.194 274.2)
-
Step 600
600 (this color)
#525BE9
oklch(54.9% 0.211 274.3)
-
Step 700
700
#454BCD
oklch(49% 0.197 274.4)
-
Step 800
800
#383FA5
oklch(42.7% 0.162 274.3)
-
Step 900
900
#2F3783
oklch(37.6% 0.127 274.1)
-
Step 950
950
#1B214D
oklch(27% 0.081 273.9)
#525BE9 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) | #0073EE | 0.068 |
| Deuteranopia (no green cones) | #0066E6 | 0.057 |
| Tritanopia (no blue cones) | #007F99 | 0.175 |
| Achromatopsia (no color) | #6D6D6D | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #525BE9
#525BE9
oklch(54.9% 0.211 274.3)
- #876F00
#876F00
oklch(54.9% 0.112 93.9)
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 #525BE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.021
- Warm Blue #4B57DB ΔE 0.026
- Royal Blue #4169E1 ΔE 0.037
- Azul #1D5DEC ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.055
- Bright Blue #0165FC ΔE 0.060
Use #525BE9 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.