#524FB9
Closest named color: Iris (#6258C4). oklch(49% 0.162 279.8), rgb(82, 79, 185).
Aa
White text reads best on this color (6.60:1).
About this color
#524FB9 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.162 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.038 away. White text reads best on it, at 6.60:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.17:1 |
| White text | 6.60:1 |
Values
| HEX | #524FB9 |
| RGB | rgb(82, 79, 185) |
| HSL | hsl(242, 43%, 52%) |
| OKLCH | oklch(49% 0.162 279.8) |
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 #524FB9 | 6.60:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #524FB9 | 3.17:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #524FB9 text on white | 6.60:1 | AA | Lc 82.3 | Fine for body text |
| #524FB9 text on black | 3.17:1 | AA large text | Lc -19.6 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F6
oklch(88.6% 0.043 279.7)
-
Step 300
300
#B6BCF3
oklch(81% 0.078 279.7)
-
Step 400
400
#9197ED
oklch(70.7% 0.125 279.6)
-
Step 500
500
#787BE8
oklch(63.2% 0.161 279.6)
-
Step 600
600
#6361D6
oklch(55.7% 0.175 279.9)
-
Step 700
700 (this color)
#524FB9
oklch(49% 0.162 279.8)
-
Step 800
800
#434296
oklch(42.8% 0.134 279.6)
-
Step 900
900
#383877
oklch(37.6% 0.105 280.1)
-
Step 950
950
#212246
oklch(27.2% 0.066 279.9)
#524FB9 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) | #0061BD | 0.071 |
| Deuteranopia (no green cones) | #0059B7 | 0.068 |
| Tritanopia (no blue cones) | #1E687C | 0.141 |
| Achromatopsia (no color) | #5D5D5D | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #524FB9
#524FB9
oklch(49% 0.162 279.8)
- #6E6100
#6E6100
oklch(49% 0.102 100.2)
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 #524FB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.038
- Bluey Purple #6241C7 ΔE 0.043
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Blurple #5539CC ΔE 0.054
- Warm Blue #4B57DB ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.062
Use #524FB9 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.