#728BB0
Closest named color: Silver Lake Blue (#778DA9). oklch(63.1% 0.063 258.1), rgb(114, 139, 176).
Aa
Black text reads best on this color (6.03:1).
About this color
#728BB0 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.063 and its hue 258°. 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 6.03:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.03:1 |
| White text | 3.47:1 |
Values
| HEX | #728BB0 |
| RGB | rgb(114, 139, 176) |
| HSL | hsl(216, 28%, 57%) |
| OKLCH | oklch(63.1% 0.063 258.1) |
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 #728BB0 | 3.47:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #728BB0 | 6.03:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #728BB0 text on white | 3.47:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #728BB0 text on black | 6.03:1 | AA | Lc -39.4 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
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
#B5C2D5
oklch(81% 0.03 257.8)
-
Step 400
400
#8EA2C0
oklch(70.7% 0.05 258.4)
-
Step 500
500 (this color)
#728BB0
oklch(63.1% 0.063 258.1)
-
Step 600
600
#5A759C
oklch(55.7% 0.069 257.5)
-
Step 700
700
#4A6285
oklch(49.2% 0.064 257.7)
-
Step 800
800
#3D506C
oklch(42.8% 0.053 257.9)
-
Step 900
900
#344258
oklch(37.6% 0.042 259.3)
-
Step 950
950
#1F2733
oklch(27.1% 0.025 258.3)
#728BB0 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) | #7E8DB2 | 0.018 |
| Deuteranopia (no green cones) | #7787AF | 0.012 |
| Tritanopia (no blue cones) | #5F9397 | 0.056 |
| Achromatopsia (no color) | #898989 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728BB0
#728BB0
oklch(63.1% 0.063 258.1)
- #9F855E
#9F855E
oklch(63.1% 0.063 77.3)
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 #728BB0, 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 0.021
- Blue Grey #758DA3 ΔE 0.023
- Light Slate Gray #778899 ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.034
- Steel #738595 ΔE 0.040
- Lavender Gray #7E7F9A ΔE 0.041
- Off Blue #5684AE ΔE 0.041
Use #728BB0 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.