#524FCA
Closest named color: Warm Blue (#4B57DB). oklch(50.4% 0.185 278.5), rgb(82, 79, 202).
Aa
White text reads best on this color (6.30:1).
About this color
#524FCA is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.185 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.032 away. White text reads best on it, at 6.30:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.33:1 |
| White text | 6.30:1 |
Values
| HEX | #524FCA |
| RGB | rgb(82, 79, 202) |
| HSL | hsl(241, 54%, 55%) |
| OKLCH | oklch(50.4% 0.185 278.5) |
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 #524FCA | 6.30:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #524FCA | 3.33:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #524FCA text on white | 6.30:1 | AA | Lc 80.9 | Fine for body text |
| #524FCA text on black | 3.33:1 | AA large text | Lc -20.9 | 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 700.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D7FA
oklch(88.6% 0.049 277.7)
-
Step 300
300
#B3BBFA
oklch(80.8% 0.089 278.6)
-
Step 400
400
#8D95F8
oklch(70.6% 0.144 278.5)
-
Step 500
500
#7478F5
oklch(63.2% 0.183 278.4)
-
Step 600
600
#5F5DE4
oklch(55.7% 0.199 278.4)
-
Step 700
700 (this color)
#524FCA
oklch(50.4% 0.185 278.5)
-
Step 800
800
#403EA0
oklch(42.6% 0.154 278.5)
-
Step 900
900
#36377F
oklch(37.8% 0.119 278.5)
-
Step 950
950
#1F214A
oklch(27.1% 0.075 278.1)
#524FCA 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) | #0065CE | 0.072 |
| Deuteranopia (no green cones) | #005BC8 | 0.066 |
| Tritanopia (no blue cones) | #006D85 | 0.158 |
| Achromatopsia (no color) | #606060 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #524FCA
#524FCA
oklch(50.4% 0.185 278.5)
- #746400
#746400
oklch(50.3% 0.104 98.2)
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 #524FCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.032
- Iris #6258C4 ΔE 0.036
- Bluey Purple #6241C7 ΔE 0.036
- Blue With A Hint Of Purple #533CC6 ΔE 0.040
- Blurple #5539CC ΔE 0.044
- Slate Blue #6A5ACD ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.052
Use #524FCA 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.