#728EA3
Closest named color: Blue Grey (#758DA3). oklch(63.3% 0.045 240.8), rgb(114, 142, 163).
Aa
Black text reads best on this color (6.11:1).
About this color
#728EA3 is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.045 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.004 away. Black text reads best on it, at 6.11:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #728EA3 |
| RGB | rgb(114, 142, 163) |
| HSL | hsl(206, 21%, 54%) |
| OKLCH | oklch(63.3% 0.045 240.8) |
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 #728EA3 | 3.43:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #728EA3 | 6.11:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #728EA3 text on white | 3.43:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #728EA3 text on black | 6.11:1 | AA | Lc -39.8 | 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
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B5C3CE
oklch(81% 0.022 241.4)
-
Step 400
400
#8EA4B5
oklch(70.7% 0.035 241.3)
-
Step 500
500 (this color)
#728EA3
oklch(63.3% 0.045 240.8)
-
Step 600
600
#5A778E
oklch(55.6% 0.049 242.6)
-
Step 700
700
#496478
oklch(49% 0.045 240.9)
-
Step 800
800
#3C5262
oklch(42.7% 0.038 240.3)
-
Step 900
900
#344450
oklch(37.8% 0.029 240.9)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#728EA3 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) | #858DA4 | 0.025 |
| Deuteranopia (no green cones) | #7F88A3 | 0.023 |
| Tritanopia (no blue cones) | #639395 | 0.035 |
| Achromatopsia (no color) | #8A8A8A | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728EA3
#728EA3
oklch(63.3% 0.045 240.8)
- #9F846F
#9F846F
oklch(63.3% 0.045 59.7)
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 #728EA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.004
- Silver Lake Blue #778DA9 ΔE 0.013
- Light Slate Gray #778899 ΔE 0.019
- Steel #738595 ΔE 0.028
- Faded Blue #658CBB ΔE 0.041
- Lavender Gray #7E7F9A ΔE 0.042
- Slate Gray #708090 ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.043
Use #728EA3 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.