#728DFB
Closest named color: Soft Blue (#6488EA). oklch(67.4% 0.165 271), rgb(114, 141, 251).
Aa
Black text reads best on this color (6.91:1).
About this color
#728DFB is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.165 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.033 away. Black text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.91:1 |
| White text | 3.03:1 |
Values
| HEX | #728DFB |
| RGB | rgb(114, 141, 251) |
| HSL | hsl(228, 94%, 72%) |
| OKLCH | oklch(67.4% 0.165 271) |
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 #728DFB | 3.03:1 | AA large text | Lc -62.3 | Content text, not long reading |
| Black text on #728DFB | 6.91:1 | AA | Lc 47.1 | Large or bold text, headings |
| #728DFB text on white | 3.03:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #728DFB text on black | 6.91:1 | AA | Lc -44.8 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400 (this color)
#728DFB
oklch(67.4% 0.165 271)
-
Step 500
500
#607BFF
oklch(63.2% 0.197 271)
-
Step 600
600
#485CF6
oklch(55.6% 0.229 271.1)
-
Step 700
700
#3A4AD7
oklch(49.1% 0.214 270.9)
-
Step 800
800
#303EAD
oklch(42.7% 0.176 271.2)
-
Step 900
900
#293789
oklch(37.8% 0.137 271)
-
Step 950
950
#182150
oklch(27% 0.087 271.3)
#728DFB 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) | #5D9AFF | 0.036 |
| Deuteranopia (no green cones) | #4B8EF9 | 0.040 |
| Tritanopia (no blue cones) | #25A5B8 | 0.147 |
| Achromatopsia (no color) | #949494 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728DFB
#728DFB
oklch(67.4% 0.165 271)
- #B69200
#B69200
oklch(67.4% 0.138 91.1)
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 #728DFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.033
- Lavender Blue #8B88F8 ΔE 0.033
- Cornflower Blue #6495ED ΔE 0.035
- Periwinkle #8E82FE ΔE 0.044
- Perrywinkle #8F8CE7 ΔE 0.047
- Chefchaouen Blue #4895EF ΔE 0.049
- Periwinkle Blue #8F99FB ΔE 0.051
- Cornflower #6A79F7 ΔE 0.052
Use #728DFB 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.