#728FDF
Closest named color: Cornflower Blue (#6495ED). oklch(66.2% 0.124 267.8), rgb(114, 143, 223).
Aa
Black text reads best on this color (6.71:1).
About this color
#728FDF is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.124 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.026 away. Black text reads best on it, at 6.71:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.71:1 |
| White text | 3.12:1 |
Values
| HEX | #728FDF |
| RGB | rgb(114, 143, 223) |
| HSL | hsl(224, 63%, 66%) |
| OKLCH | oklch(66.2% 0.124 267.8) |
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 #728FDF | 3.12:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #728FDF | 6.71:1 | AA | Lc 45.8 | Large or bold text, headings |
| #728FDF text on white | 3.12:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #728FDF text on black | 6.71:1 | AA | Lc -43.5 | 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 500.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#CFD9F0
oklch(88.5% 0.033 266.9)
-
Step 300
300
#B0C0E9
oklch(80.9% 0.061 268.3)
-
Step 400
400
#869EDE
oklch(70.6% 0.098 268.1)
-
Step 500
500 (this color)
#728FDF
oklch(66.2% 0.124 267.8)
-
Step 600
600
#516EC2
oklch(55.7% 0.135 267.6)
-
Step 700
700
#425BA7
oklch(49.1% 0.125 267.9)
-
Step 800
800
#364B87
oklch(42.7% 0.103 267.4)
-
Step 900
900
#2F3F6C
oklch(37.7% 0.08 267.7)
-
Step 950
950
#1C253F
oklch(27% 0.05 268.4)
#728FDF 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) | #7097E2 | 0.021 |
| Deuteranopia (no green cones) | #658DDD | 0.017 |
| Tritanopia (no blue cones) | #44A0AC | 0.112 |
| Achromatopsia (no color) | #929292 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728FDF
#728FDF
oklch(66.2% 0.124 267.8)
- #B38D24
#B38D24
oklch(66.2% 0.124 87.3)
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 #728FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.026
- Soft Blue #6488EA ΔE 0.033
- Perrywinkle #8F8CE7 ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.047
- Lavender Blue #8B88F8 ΔE 0.055
- Faded Blue #658CBB ΔE 0.058
- Periwinkle Blue #8F99FB ΔE 0.062
Use #728FDF 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.