#729CFB
Closest named color: Cornflower Blue (#6495ED). oklch(70.4% 0.147 264.9), rgb(114, 156, 251).
Aa
Black text reads best on this color (7.86:1).
About this color
#729CFB is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.147 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.031 away. Black text reads best on it, at 7.86:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.86:1 |
| White text | 2.67:1 |
Values
| HEX | #729CFB |
| RGB | rgb(114, 156, 251) |
| HSL | hsl(222, 94%, 72%) |
| OKLCH | oklch(70.4% 0.147 264.9) |
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 #729CFB | 2.67:1 | Fails | Lc -56.9 | Large or bold text, headings |
| Black text on #729CFB | 7.86:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #729CFB text on white | 2.67:1 | Fails | Lc 51.7 | Large or bold text, headings |
| #729CFB text on black | 7.86:1 | AAA | Lc -50.2 | 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
#A3C0FD
oklch(80.9% 0.092 264.7)
-
Step 400
400 (this color)
#729CFB
oklch(70.4% 0.147 264.9)
-
Step 500
500
#5081FA
oklch(63.2% 0.188 264.9)
-
Step 600
600
#3666E9
oklch(55.6% 0.205 265)
-
Step 700
700
#2954CA
oklch(49.1% 0.19 264.9)
-
Step 800
800
#2346A4
oklch(42.8% 0.157 264.9)
-
Step 900
900
#203C82
oklch(37.8% 0.123 264.7)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#729CFB 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) | #75A5FF | 0.024 |
| Deuteranopia (no green cones) | #6499F9 | 0.018 |
| Tritanopia (no blue cones) | #1EB1BF | 0.133 |
| Achromatopsia (no color) | #9E9E9E | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #729CFB
#729CFB
oklch(70.4% 0.147 264.9)
- #C99700
#C99700
oklch(70.5% 0.144 84.8)
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 #729CFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.031
- Periwinkle Blue #8F99FB ΔE 0.035
- Chefchaouen Blue #4895EF ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.054
- Lavender Blue #8B88F8 ΔE 0.055
- Soft Blue #6488EA ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.070
- Periwinkle #8E82FE ΔE 0.071
Use #729CFB 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.