#73A9FD
Closest named color: Periwinkle Blue (#8F99FB). oklch(73.3% 0.135 258.9), rgb(115, 169, 253).
Aa
Black text reads best on this color (8.82:1).
About this color
#73A9FD is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.135 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.049 away. Black text reads best on it, at 8.82:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.82:1 |
| White text | 2.38:1 |
Values
| HEX | #73A9FD |
| RGB | rgb(115, 169, 253) |
| HSL | hsl(217, 97%, 72%) |
| OKLCH | oklch(73.3% 0.135 258.9) |
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 #73A9FD | 2.38:1 | Fails | Lc -51.7 | Large or bold text, headings |
| Black text on #73A9FD | 8.82:1 | AAA | Lc 57.2 | Large or bold text, headings |
| #73A9FD text on white | 2.38:1 | Fails | Lc 46.7 | Large or bold text, headings |
| #73A9FD text on black | 8.82:1 | AAA | Lc -55.3 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DBF9
oklch(88.6% 0.047 258.4)
-
Step 300
300
#A0C2F8
oklch(80.9% 0.085 259.5)
-
Step 400
400 (this color)
#73A9FD
oklch(73.3% 0.135 258.9)
-
Step 500
500
#4286F0
oklch(63% 0.174 259.1)
-
Step 600
600
#206DDF
oklch(55.6% 0.189 259)
-
Step 700
700
#125AC1
oklch(49% 0.175 259)
-
Step 800
800
#134B9C
oklch(42.8% 0.144 258.7)
-
Step 900
900
#173F7C
oklch(37.6% 0.113 258.9)
-
Step 950
950
#0F2649
oklch(27.2% 0.071 258.7)
#73A9FD 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) | #87AFFF | 0.029 |
| Deuteranopia (no green cones) | #76A2FB | 0.018 |
| Tritanopia (no blue cones) | #18BCC7 | 0.122 |
| Achromatopsia (no color) | #A8A8A8 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73A9FD
#73A9FD
oklch(73.3% 0.135 258.9)
- #D69D32
#D69D32
oklch(73.3% 0.135 78.8)
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 #73A9FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.049
- Carolina Blue #8AB8FE ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.074
- Perrywinkle #8F8CE7 ΔE 0.078
- Lavender Blue #8B88F8 ΔE 0.084
- Pastel Blue #A2BFFE ΔE 0.085
Use #73A9FD 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.