#536CD5
Closest named color: Royal Blue (#4169E1). oklch(56.6% 0.163 270.4), rgb(83, 108, 213).
Aa
White text reads best on this color (4.69:1).
About this color
#536CD5 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.163 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.029 away. White text reads best on it, at 4.69:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.47:1 |
| White text | 4.69:1 |
Values
| HEX | #536CD5 |
| RGB | rgb(83, 108, 213) |
| HSL | hsl(228, 61%, 58%) |
| OKLCH | oklch(56.6% 0.163 270.4) |
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 #536CD5 | 4.69:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #536CD5 | 4.47:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #536CD5 text on white | 4.69:1 | AA | Lc 72.3 | Content text, not long reading |
| #536CD5 text on black | 4.47:1 | AA large text | Lc -29.4 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#AEBFF1
oklch(80.9% 0.073 270.1)
-
Step 400
400
#859CEA
oklch(70.7% 0.117 270.7)
-
Step 500
500
#6782E4
oklch(63.2% 0.15 270.1)
-
Step 600
600 (this color)
#536CD5
oklch(56.6% 0.163 270.4)
-
Step 700
700
#4157B5
oklch(49.1% 0.151 270.1)
-
Step 800
800
#364793
oklch(42.7% 0.126 270.7)
-
Step 900
900
#2E3D75
oklch(37.8% 0.097 270)
-
Step 950
950
#1B2445
oklch(27.1% 0.063 270.3)
#536CD5 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) | #347AD9 | 0.042 |
| Deuteranopia (no green cones) | #186ED3 | 0.047 |
| Tritanopia (no blue cones) | #008496 | 0.140 |
| Achromatopsia (no color) | #747474 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536CD5
#536CD5
oklch(56.6% 0.163 270.4)
- #907200
#907200
oklch(56.5% 0.116 90.3)
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 #536CD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.029
- Dark Periwinkle #665FD1 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.052
- Neon Blue #4361EE ΔE 0.052
- Iris #6258C4 ΔE 0.054
- Warm Blue #4B57DB ΔE 0.055
- Windows Blue #3778BF ΔE 0.056
Use #536CD5 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.