#728FEF
Closest named color: Cornflower Blue (#6495ED). oklch(67.1% 0.146 269.5), rgb(114, 143, 239).
Aa
Black text reads best on this color (6.89:1).
About this color
#728FEF is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.146 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.021 away. Black text reads best on it, at 6.89:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.89:1 |
| White text | 3.04:1 |
Values
| HEX | #728FEF |
| RGB | rgb(114, 143, 239) |
| HSL | hsl(226, 80%, 69%) |
| OKLCH | oklch(67.1% 0.146 269.5) |
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 #728FEF | 3.04:1 | AA large text | Lc -62.5 | Content text, not long reading |
| Black text on #728FEF | 6.89:1 | AA | Lc 46.9 | Large or bold text, headings |
| #728FEF text on white | 3.04:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #728FEF text on black | 6.89:1 | AA | Lc -44.6 | Non-text elements, placeholder text |
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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CCD8FC
oklch(88.5% 0.051 270.8)
-
Step 300
300
#A9BEFC
oklch(80.8% 0.091 269.8)
-
Step 400
400 (this color)
#728FEF
oklch(67.1% 0.146 269.5)
-
Step 500
500
#5E7EF9
oklch(63.2% 0.186 269.5)
-
Step 600
600
#4763E8
oklch(55.7% 0.203 269.6)
-
Step 700
700
#3951CA
oklch(49.2% 0.189 269.5)
-
Step 800
800
#2F43A3
oklch(42.7% 0.156 269.6)
-
Step 900
900
#293A81
oklch(37.7% 0.121 269.6)
-
Step 950
950
#18234C
oklch(27.1% 0.077 269.4)
#728FEF 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) | #689AF3 | 0.029 |
| Deuteranopia (no green cones) | #5A8FED | 0.027 |
| Tritanopia (no blue cones) | #35A4B3 | 0.132 |
| Achromatopsia (no color) | #949494 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728FEF
#728FEF
oklch(67.1% 0.146 269.5)
- #B79000
#B79000
oklch(67.1% 0.137 89.3)
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 #728FEF, closest first.
No curated palette has a color within ΔE 0.04 of #728FEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.021
- Soft Blue #6488EA ΔE 0.027
- Perrywinkle #8F8CE7 ΔE 0.039
- Lavender Blue #8B88F8 ΔE 0.039
- Chefchaouen Blue #4895EF ΔE 0.042
- Periwinkle Blue #8F99FB ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.050
- Periwinkle #8E82FE ΔE 0.054
Use #728FEF 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.