#5475DA
Closest named color: Royal Blue (#4169E1). oklch(58.8% 0.158 267.7), rgb(84, 117, 218).
Aa
Black text reads best on this color (4.93:1).
About this color
#5475DA is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.158 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.041 away. Black text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #5475DA |
| RGB | rgb(84, 117, 218) |
| HSL | hsl(225, 64%, 59%) |
| OKLCH | oklch(58.8% 0.158 267.7) |
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 #5475DA | 4.25:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #5475DA | 4.93:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #5475DA text on white | 4.25:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #5475DA text on black | 4.93:1 | AA | Lc -32.5 | Non-text elements, placeholder text |
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
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F4
oklch(88.5% 0.039 267.9)
-
Step 300
300
#ADC0F0
oklch(81% 0.071 267.9)
-
Step 400
400
#829EE8
oklch(70.8% 0.113 267.7)
-
Step 500
500
#6383E1
oklch(63% 0.146 267.9)
-
Step 600
600 (this color)
#5475DA
oklch(58.8% 0.158 267.7)
-
Step 700
700
#3D59B3
oklch(49.2% 0.146 267.7)
-
Step 800
800
#324991
oklch(42.7% 0.122 267.7)
-
Step 900
900
#2C3E74
oklch(37.8% 0.095 267.8)
-
Step 950
950
#1A2444
oklch(26.9% 0.061 268.9)
#5475DA 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) | #4481DE | 0.032 |
| Deuteranopia (no green cones) | #2D75D8 | 0.035 |
| Tritanopia (no blue cones) | #008C9D | 0.136 |
| Achromatopsia (no color) | #7B7B7B | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5475DA
#5475DA
oklch(58.8% 0.158 267.7)
- #9B7700
#9B7700
oklch(58.8% 0.12 87.4)
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 #5475DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.041
- Windows Blue #3778BF ΔE 0.053
- Cornflower #6A79F7 ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.056
- Soft Blue #6488EA ΔE 0.058
- Clear Blue #247AFD ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.064
Use #5475DA 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.