#728FB3
Closest named color: Silver Lake Blue (#778DA9). oklch(64.1% 0.064 254.1), rgb(114, 143, 179).
Aa
Black text reads best on this color (6.29:1).
About this color
#728FB3 is a medium-light, muted blue. In OKLCH its lightness is 64%, its chroma 0.064 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.015 away. Black text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.29:1 |
| White text | 3.33:1 |
Values
| HEX | #728FB3 |
| RGB | rgb(114, 143, 179) |
| HSL | hsl(213, 30%, 57%) |
| OKLCH | oklch(64.1% 0.064 254.1) |
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 #728FB3 | 3.33:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #728FB3 | 6.29:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #728FB3 text on white | 3.33:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #728FB3 text on black | 6.29:1 | AA | Lc -41.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B3C2D5
oklch(80.9% 0.032 254.3)
-
Step 400
400
#8CA3C0
oklch(70.8% 0.05 254.4)
-
Step 500
500 (this color)
#728FB3
oklch(64.1% 0.064 254.1)
-
Step 600
600
#57769B
oklch(55.7% 0.068 253.3)
-
Step 700
700
#476385
oklch(49.2% 0.064 253.8)
-
Step 800
800
#3A516C
oklch(42.8% 0.053 253)
-
Step 900
900
#324357
oklch(37.7% 0.041 252.9)
-
Step 950
950
#1E2733
oklch(27% 0.026 255.7)
#728FB3 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) | #8290B5 | 0.022 |
| Deuteranopia (no green cones) | #7A8AB2 | 0.016 |
| Tritanopia (no blue cones) | #5D979B | 0.055 |
| Achromatopsia (no color) | #8D8D8D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728FB3
#728FB3
oklch(64.1% 0.064 254.1)
- #A48761
#A48761
oklch(64.1% 0.063 73.8)
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 #728FB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.015
- Faded Blue #658CBB ΔE 0.023
- Blue Grey #758DA3 ΔE 0.023
- Light Slate Gray #778899 ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.041
- Steel #738595 ΔE 0.046
- Off Blue #5684AE ΔE 0.048
- Cool Gray #8D99AE ΔE 0.049
Use #728FB3 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.