#728CEE
Closest named color: Soft Blue (#6488EA). oklch(66.5% 0.148 270.7), rgb(114, 140, 238).
Aa
Black text reads best on this color (6.70:1).
About this color
#728CEE is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.148 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.021 away. Black text reads best on it, at 6.70:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.70:1 |
| White text | 3.13:1 |
Values
| HEX | #728CEE |
| RGB | rgb(114, 140, 238) |
| HSL | hsl(227, 78%, 69%) |
| OKLCH | oklch(66.5% 0.148 270.7) |
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 #728CEE | 3.13:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #728CEE | 6.70:1 | AA | Lc 45.8 | Large or bold text, headings |
| #728CEE text on white | 3.13:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #728CEE 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F8
oklch(93.5% 0.021 271.2)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#AFBFF0
oklch(80.9% 0.072 270.6)
-
Step 400
400
#859CE9
oklch(70.6% 0.116 270.6)
-
Step 500
500 (this color)
#728CEE
oklch(66.5% 0.148 270.7)
-
Step 600
600
#5169D0
oklch(55.6% 0.161 270.5)
-
Step 700
700
#4257B5
oklch(49.2% 0.15 270.5)
-
Step 800
800
#364792
oklch(42.6% 0.125 270.7)
-
Step 900
900
#2F3D74
oklch(37.8% 0.095 270.5)
-
Step 950
950
#1B2444
oklch(27% 0.061 270.1)
#728CEE 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) | #6497F2 | 0.030 |
| Deuteranopia (no green cones) | #568CEC | 0.031 |
| Tritanopia (no blue cones) | #37A1B1 | 0.133 |
| Achromatopsia (no color) | #919191 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728CEE
#728CEE
oklch(66.5% 0.148 270.7)
- #B38F00
#B38F00
oklch(66.5% 0.136 90.8)
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 #728CEE, closest first.
No curated palette has a color within ΔE 0.04 of #728CEE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.021
- Cornflower Blue #6495ED ΔE 0.027
- Lavender Blue #8B88F8 ΔE 0.038
- Perrywinkle #8F8CE7 ΔE 0.039
- Chefchaouen Blue #4895EF ΔE 0.044
- Dark Sky Blue #448EE4 ΔE 0.050
- Periwinkle #8E82FE ΔE 0.051
- Cornflower #6A79F7 ΔE 0.054
Use #728CEE 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.