#504BC4
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(49% 0.183 279.1), rgb(80, 75, 196).
Aa
White text reads best on this color (6.67:1).
About this color
#504BC4 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.183 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.031 away. White text reads best on it, at 6.67:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Values
| HEX | #504BC4 |
| RGB | rgb(80, 75, 196) |
| HSL | hsl(242, 51%, 53%) |
| OKLCH | oklch(49% 0.183 279.1) |
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 #504BC4 | 6.67:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #504BC4 | 3.14:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #504BC4 text on white | 6.67:1 | AA | Lc 82.5 | Fine for body text |
| #504BC4 text on black | 3.14:1 | AA large text | Lc -19.4 | 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 700.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B4BBFA
oklch(80.9% 0.089 279.3)
-
Step 400
400
#8F95F7
oklch(70.7% 0.142 279.4)
-
Step 500
500
#7578F3
oklch(63.1% 0.18 278.8)
-
Step 600
600
#605DE2
oklch(55.6% 0.196 278.9)
-
Step 700
700 (this color)
#504BC4
oklch(49% 0.183 279.1)
-
Step 800
800
#413F9F
oklch(42.8% 0.151 278.8)
-
Step 900
900
#36377E
oklch(37.8% 0.117 278.6)
-
Step 950
950
#20214A
oklch(27.1% 0.074 279.2)
#504BC4 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) | #0061C8 | 0.072 |
| Deuteranopia (no green cones) | #0057C2 | 0.066 |
| Tritanopia (no blue cones) | #006980 | 0.157 |
| Achromatopsia (no color) | #5C5C5C | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504BC4
#504BC4
oklch(49% 0.183 279.1)
- #6F6100
#6F6100
oklch(49.1% 0.102 99.4)
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 #504BC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.031
- Bluey Purple #6241C7 ΔE 0.033
- Blurple #5539CC ΔE 0.037
- Iris #6258C4 ΔE 0.044
- Warm Blue #4B57DB ΔE 0.044
- Majorelle Blue #3F37C9 ΔE 0.052
- Slate Blue #6A5ACD ΔE 0.058
- Light Indigo #6D5ACF ΔE 0.062
Use #504BC4 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.