#729DFB
Closest named color: Cornflower Blue (#6495ED). oklch(70.6% 0.146 264.4), rgb(114, 157, 251).
Aa
Black text reads best on this color (7.93:1).
About this color
#729DFB is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.146 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.033 away. Black text reads best on it, at 7.93:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.93:1 |
| White text | 2.64:1 |
Values
| HEX | #729DFB |
| RGB | rgb(114, 157, 251) |
| HSL | hsl(221, 94%, 72%) |
| OKLCH | oklch(70.6% 0.146 264.4) |
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 #729DFB | 2.64:1 | Fails | Lc -56.5 | Large or bold text, headings |
| Black text on #729DFB | 7.93:1 | AAA | Lc 52.6 | Large or bold text, headings |
| #729DFB text on white | 2.64:1 | Fails | Lc 51.4 | Large or bold text, headings |
| #729DFB text on black | 7.93:1 | AAA | Lc -50.5 | 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
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A3C0FC
oklch(80.8% 0.091 264.4)
-
Step 400
400 (this color)
#729DFB
oklch(70.6% 0.146 264.4)
-
Step 500
500
#4F81F9
oklch(63.1% 0.187 264.6)
-
Step 600
600
#3467E8
oklch(55.6% 0.203 264.4)
-
Step 700
700
#2855C9
oklch(49.2% 0.187 264.4)
-
Step 800
800
#2146A3
oklch(42.7% 0.157 264.3)
-
Step 900
900
#203C81
oklch(37.7% 0.121 264.6)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#729DFB 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) | #77A6FF | 0.025 |
| Deuteranopia (no green cones) | #6699F9 | 0.018 |
| Tritanopia (no blue cones) | #1EB2C0 | 0.132 |
| Achromatopsia (no color) | #9F9F9F | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #729DFB
#729DFB
oklch(70.6% 0.146 264.4)
- #CA9700
#CA9700
oklch(70.6% 0.145 84.3)
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 #729DFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.033
- Periwinkle Blue #8F99FB ΔE 0.035
- Chefchaouen Blue #4895EF ΔE 0.051
- Perrywinkle #8F8CE7 ΔE 0.055
- Lavender Blue #8B88F8 ΔE 0.057
- Soft Blue #6488EA ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.071
- Periwinkle #8E82FE ΔE 0.073
Use #729DFB 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.