#729FFF
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.3% 0.149 264), rgb(114, 159, 255).
Aa
Black text reads best on this color (8.11:1).
About this color
#729FFF is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.149 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.036 away. Black text reads best on it, at 8.11:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.11:1 |
| White text | 2.58:1 |
Values
| HEX | #729FFF |
| RGB | rgb(114, 159, 255) |
| HSL | hsl(221, 100%, 72%) |
| OKLCH | oklch(71.3% 0.149 264) |
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 #729FFF | 2.58:1 | Fails | Lc -55.5 | Large or bold text, headings |
| Black text on #729FFF | 8.11:1 | AAA | Lc 53.6 | Large or bold text, headings |
| #729FFF text on white | 2.58:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #729FFF text on black | 8.11:1 | AAA | Lc -51.6 | 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
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400 (this color)
#729FFF
oklch(71.3% 0.149 264)
-
Step 500
500
#4C81FB
oklch(63.1% 0.191 264)
-
Step 600
600
#3167EA
oklch(55.7% 0.207 263.9)
-
Step 700
700
#2454CC
oklch(49.1% 0.193 264)
-
Step 800
800
#1F46A5
oklch(42.8% 0.16 263.9)
-
Step 900
900
#1E3C82
oklch(37.7% 0.124 263.9)
-
Step 950
950
#12244C
oklch(27% 0.078 263.8)
#729FFF 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) | #77A8FF | 0.025 |
| Deuteranopia (no green cones) | #669BFD | 0.018 |
| Tritanopia (no blue cones) | #12B4C3 | 0.134 |
| Achromatopsia (no color) | #A1A1A1 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #729FFF
#729FFF
oklch(71.3% 0.149 264)
- #CD9900
#CD9900
oklch(71.3% 0.146 84.1)
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 #729FFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.036
- Cornflower Blue #6495ED ΔE 0.039
- Chefchaouen Blue #4895EF ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.061
- Soft Blue #6488EA ΔE 0.067
- Carolina Blue #8AB8FE ΔE 0.075
- Periwinkle #8E82FE ΔE 0.076
Use #729FFF 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.