#73A3FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.1% 0.144 262.4), rgb(115, 163, 255).
Aa
Black text reads best on this color (8.41:1).
About this color
#73A3FF is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.144 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.039 away. Black text reads best on it, at 8.41:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.41:1 |
| White text | 2.49:1 |
Values
| HEX | #73A3FF |
| RGB | rgb(115, 163, 255) |
| HSL | hsl(219, 100%, 73%) |
| OKLCH | oklch(72.1% 0.144 262.4) |
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 #73A3FF | 2.49:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #73A3FF | 8.41:1 | AAA | Lc 55.2 | Large or bold text, headings |
| #73A3FF text on white | 2.49:1 | Fails | Lc 48.8 | Large or bold text, headings |
| #73A3FF text on black | 8.41:1 | AAA | Lc -53.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFB
oklch(88.5% 0.05 262.6)
-
Step 300
300
#A1C1FC
oklch(80.9% 0.091 262.4)
-
Step 400
400 (this color)
#73A3FF
oklch(72.1% 0.144 262.4)
-
Step 500
500
#4983F7
oklch(63.1% 0.184 262.4)
-
Step 600
600
#2C69E6
oklch(55.6% 0.2 262.4)
-
Step 700
700
#2056C8
oklch(49% 0.187 262.6)
-
Step 800
800
#1C47A2
oklch(42.6% 0.155 262.7)
-
Step 900
900
#1C3D80
oklch(37.7% 0.12 262.5)
-
Step 950
950
#11244B
oklch(26.9% 0.077 262.8)
#73A3FF 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) | #7DABFF | 0.025 |
| Deuteranopia (no green cones) | #6C9EFD | 0.016 |
| Tritanopia (no blue cones) | #17B7C5 | 0.129 |
| Achromatopsia (no color) | #A4A4A4 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73A3FF
#73A3FF
oklch(72.1% 0.144 262.4)
- #D19B15
#D19B15
oklch(72.2% 0.144 82.7)
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 #73A3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.039
- Cornflower Blue #6495ED ΔE 0.047
- Chefchaouen Blue #4895EF ΔE 0.063
- Carolina Blue #8AB8FE ΔE 0.065
- Perrywinkle #8F8CE7 ΔE 0.066
- Lavender Blue #8B88F8 ΔE 0.070
- Soft Blue #6488EA ΔE 0.077
- Dark Sky Blue #448EE4 ΔE 0.084
Use #73A3FF 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.