#497BC6
Closest named color: Windows Blue (#3778BF). oklch(58.3% 0.128 258.3), rgb(73, 123, 198).
Aa
Black text reads best on this color (4.93:1).
About this color
#497BC6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.128 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.022 away. Black text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #497BC6 |
| RGB | rgb(73, 123, 198) |
| HSL | hsl(216, 52%, 53%) |
| OKLCH | oklch(58.3% 0.128 258.3) |
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 #497BC6 | 4.25:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #497BC6 | 4.93:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #497BC6 text on white | 4.25:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #497BC6 text on black | 4.93:1 | AA | Lc -32.5 | 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 600.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#AAC2E6
oklch(80.8% 0.057 258.4)
-
Step 400
400
#7DA2DA
oklch(70.7% 0.092 258.5)
-
Step 500
500
#5C8AD0
oklch(63.1% 0.118 258.5)
-
Step 600
600 (this color)
#497BC6
oklch(58.3% 0.128 258.3)
-
Step 700
700
#3360A3
oklch(49.1% 0.119 258.3)
-
Step 800
800
#2B4F84
oklch(42.8% 0.098 258)
-
Step 900
900
#27426A
oklch(37.8% 0.076 258.1)
-
Step 950
950
#17273E
oklch(27.1% 0.048 257.5)
#497BC6 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) | #5A81C9 | 0.026 |
| Deuteranopia (no green cones) | #4975C4 | 0.016 |
| Tritanopia (no blue cones) | #008C97 | 0.106 |
| Achromatopsia (no color) | #7B7B7B | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497BC6
#497BC6
oklch(58.3% 0.128 258.3)
- #A27100
#A27100
oklch(58.4% 0.122 78.5)
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 #497BC6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.022
- Cool Blue #4984B8 ΔE 0.037
- Steel Blue #4682B4 ΔE 0.038
- Water Blue #0E87CC ΔE 0.041
- Flat Blue #3C73A8 ΔE 0.052
- Off Blue #5684AE ΔE 0.052
- Nice Blue #107AB0 ΔE 0.053
- French Blue #436BAD ΔE 0.055
Use #497BC6 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.