#728CA5
Closest named color: Blue Grey (#758DA3). oklch(62.9% 0.048 247.6), rgb(114, 140, 165).
Aa
Black text reads best on this color (6.01:1).
About this color
#728CA5 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.048 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.006 away. Black text reads best on it, at 6.01:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.01:1 |
| White text | 3.49:1 |
Values
| HEX | #728CA5 |
| RGB | rgb(114, 140, 165) |
| HSL | hsl(209, 22%, 55%) |
| OKLCH | oklch(62.9% 0.048 247.6) |
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 #728CA5 | 3.49:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #728CA5 | 6.01:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #728CA5 text on white | 3.49:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #728CA5 text on black | 6.01:1 | AA | Lc -39.2 | 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
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B5C2CF
oklch(80.8% 0.023 248.1)
-
Step 400
400
#8FA3B7
oklch(70.7% 0.037 248.3)
-
Step 500
500 (this color)
#728CA5
oklch(62.9% 0.048 247.6)
-
Step 600
600
#5B7691
oklch(55.5% 0.053 248.8)
-
Step 700
700
#4A637B
oklch(48.9% 0.049 247.8)
-
Step 800
800
#3D5164
oklch(42.6% 0.04 247.5)
-
Step 900
900
#344352
oklch(37.6% 0.032 248.7)
-
Step 950
950
#1F2730
oklch(26.9% 0.02 251.6)
#728CA5 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) | #828CA6 | 0.021 |
| Deuteranopia (no green cones) | #7C87A5 | 0.018 |
| Tritanopia (no blue cones) | #639294 | 0.041 |
| Achromatopsia (no color) | #898989 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728CA5
#728CA5
oklch(62.9% 0.048 247.6)
- #9D846A
#9D846A
oklch(63% 0.048 67.9)
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 #728CA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.006
- Silver Lake Blue #778DA9 ΔE 0.009
- Light Slate Gray #778899 ΔE 0.019
- Steel #738595 ΔE 0.027
- Faded Blue #658CBB ΔE 0.036
- Lavender Gray #7E7F9A ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.038
- Slate Gray #708090 ΔE 0.040
Use #728CA5 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.