#525FC0
Closest named color: Iris (#6258C4). oklch(52.6% 0.151 274.3), rgb(82, 95, 192).
Aa
White text reads best on this color (5.58:1).
About this color
#525FC0 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.151 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.028 away. White text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.75:1 |
| White text | 5.58:1 |
Values
| HEX | #525FC0 |
| RGB | rgb(82, 95, 192) |
| HSL | hsl(233, 47%, 54%) |
| OKLCH | oklch(52.6% 0.151 274.3) |
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 #525FC0 | 5.58:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #525FC0 | 3.75:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #525FC0 text on white | 5.58:1 | AA | Lc 77.7 | Fine for body text |
| #525FC0 text on black | 3.75:1 | AA large text | Lc -24.1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B3BEED
oklch(80.9% 0.068 274.5)
-
Step 400
400
#8C9BE4
oklch(70.7% 0.108 274.4)
-
Step 500
500
#7181DD
oklch(63.2% 0.139 274.3)
-
Step 600
600 (this color)
#525FC0
oklch(52.6% 0.151 274.3)
-
Step 700
700
#4A56AF
oklch(49.1% 0.141 274.2)
-
Step 800
800
#3D478E
oklch(42.8% 0.117 274.4)
-
Step 900
900
#333C71
oklch(37.6% 0.091 274)
-
Step 950
950
#1E2442
oklch(27.1% 0.056 273.5)
#525FC0 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) | #2C6DC3 | 0.048 |
| Deuteranopia (no green cones) | #1863BE | 0.052 |
| Tritanopia (no blue cones) | #0A7586 | 0.134 |
| Achromatopsia (no color) | #686868 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #525FC0
#525FC0
oklch(52.6% 0.151 274.3)
- #7F6900
#7F6900
oklch(52.7% 0.108 94.5)
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 #525FC0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.028
- Dark Periwinkle #665FD1 ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.047
- Warm Blue #4B57DB ΔE 0.049
- French Blue #436BAD ΔE 0.050
- Mid Blue #276AB3 ΔE 0.055
- Royal Blue #4169E1 ΔE 0.056
Use #525FC0 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.