#728EE4
Closest named color: Cornflower Blue (#6495ED). oklch(66.3% 0.132 269), rgb(114, 142, 228).
Aa
Black text reads best on this color (6.70:1).
About this color
#728EE4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.132 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.023 away. Black text reads best on it, at 6.70:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.70:1 |
| White text | 3.13:1 |
Values
| HEX | #728EE4 |
| RGB | rgb(114, 142, 228) |
| HSL | hsl(225, 68%, 67%) |
| OKLCH | oklch(66.3% 0.132 269) |
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 #728EE4 | 3.13:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #728EE4 | 6.70:1 | AA | Lc 45.8 | Large or bold text, headings |
| #728EE4 text on white | 3.13:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #728EE4 text on black | 6.70:1 | 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
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AFC0EB
oklch(80.9% 0.064 268.1)
-
Step 400
400
#869EE2
oklch(70.8% 0.104 268.8)
-
Step 500
500 (this color)
#728EE4
oklch(66.3% 0.132 269)
-
Step 600
600
#516CC7
oklch(55.6% 0.144 268.9)
-
Step 700
700
#425AAC
oklch(49.2% 0.134 268.8)
-
Step 800
800
#364A8B
oklch(42.7% 0.11 268.6)
-
Step 900
900
#2F3E6F
oklch(37.7% 0.086 269.2)
-
Step 950
950
#1B2541
oklch(27% 0.054 267.8)
#728EE4 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) | #6C97E7 | 0.023 |
| Deuteranopia (no green cones) | #608DE2 | 0.021 |
| Tritanopia (no blue cones) | #40A0AE | 0.118 |
| Achromatopsia (no color) | #919191 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728EE4
#728EE4
oklch(66.3% 0.132 269)
- #B48E10
#B48E10
oklch(66.4% 0.132 89)
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 #728EE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.023
- Soft Blue #6488EA ΔE 0.027
- Perrywinkle #8F8CE7 ΔE 0.039
- Chefchaouen Blue #4895EF ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.046
- Lavender Blue #8B88F8 ΔE 0.048
- Periwinkle Blue #8F99FB ΔE 0.058
- Periwinkle #8E82FE ΔE 0.064
Use #728EE4 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.