#5D75D4
Closest named color: Royal Blue (#4169E1). oklch(59% 0.147 270.7), rgb(93, 117, 212).
Aa
Black text reads best on this color (4.96:1).
About this color
#5D75D4 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.147 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.052 away. Black text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.96:1 |
| White text | 4.23:1 |
Values
| HEX | #5D75D4 |
| RGB | rgb(93, 117, 212) |
| HSL | hsl(228, 58%, 60%) |
| OKLCH | oklch(59% 0.147 270.7) |
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 #5D75D4 | 4.23:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #5D75D4 | 4.96:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #5D75D4 text on white | 4.23:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #5D75D4 text on black | 4.96:1 | AA | Lc -32.6 | 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
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D8F2
oklch(88.4% 0.037 272)
-
Step 300
300
#B0BFEC
oklch(80.9% 0.066 270.5)
-
Step 400
400
#889DE3
oklch(70.8% 0.106 270.8)
-
Step 500
500
#6B83DB
oklch(63.1% 0.135 270.6)
-
Step 600
600 (this color)
#5D75D4
oklch(59% 0.147 270.7)
-
Step 700
700
#4458AD
oklch(48.9% 0.137 270.6)
-
Step 800
800
#38498C
oklch(42.7% 0.112 270.3)
-
Step 900
900
#303D70
oklch(37.6% 0.089 270.9)
-
Step 950
950
#1C2442
oklch(26.9% 0.057 270.9)
#5D75D4 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) | #4A81D8 | 0.034 |
| Deuteranopia (no green cones) | #3B76D2 | 0.035 |
| Tritanopia (no blue cones) | #128A9A | 0.132 |
| Achromatopsia (no color) | #7B7B7B | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D75D4
#5D75D4
oklch(59% 0.147 270.7)
- #987900
#987900
oklch(58.9% 0.12 90.7)
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 #5D75D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.052
- Windows Blue #3778BF ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.054
- Cornflower #6A79F7 ΔE 0.056
- Soft Blue #6488EA ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.065
- Slate Blue #6A5ACD ΔE 0.066
- Dark Sky Blue #448EE4 ΔE 0.066
Use #5D75D4 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.