#728A9D
Closest named color: Light Slate Gray (#778899). oklch(62.1% 0.04 242.2), rgb(114, 138, 157).
Aa
Black text reads best on this color (5.83:1).
About this color
#728A9D is a medium-light, muted blue. In OKLCH its lightness is 62%, its chroma 0.040 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.009 away. Black text reads best on it, at 5.83:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.83:1 |
| White text | 3.59:1 |
Values
| HEX | #728A9D |
| RGB | rgb(114, 138, 157) |
| HSL | hsl(207, 18%, 53%) |
| OKLCH | oklch(62.1% 0.04 242.2) |
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 #728A9D | 3.59:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #728A9D | 5.83:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #728A9D text on white | 3.59:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #728A9D text on black | 5.83:1 | AA | Lc -38.1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C2CC
oklch(80.8% 0.019 243)
-
Step 400
400
#90A3B3
oklch(70.6% 0.032 243.6)
-
Step 500
500 (this color)
#728A9D
oklch(62.1% 0.04 242.2)
-
Step 600
600
#5D778B
oklch(55.6% 0.043 241.6)
-
Step 700
700
#4D6476
oklch(49.2% 0.04 242.2)
-
Step 800
800
#3F5160
oklch(42.6% 0.034 243.8)
-
Step 900
900
#36434E
oklch(37.6% 0.025 244)
-
Step 950
950
#20282E
oklch(27.2% 0.016 240.6)
#728A9D 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) | #828A9E | 0.022 |
| Deuteranopia (no green cones) | #7D859D | 0.019 |
| Tritanopia (no blue cones) | #658F90 | 0.033 |
| Achromatopsia (no color) | #878787 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728A9D
#728A9D
oklch(62.1% 0.04 242.2)
- #99826E
#99826E
oklch(62.2% 0.041 63)
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 #728A9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.009
- Blue Grey #758DA3 ΔE 0.012
- Steel #738595 ΔE 0.016
- Silver Lake Blue #778DA9 ΔE 0.020
- Slate Gray #708090 ΔE 0.030
- Steel Grey #6F828A ΔE 0.032
- Lavender Gray #7E7F9A ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.041
Use #728A9D 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.