#497CC5
Closest named color: Windows Blue (#3778BF). oklch(58.5% 0.125 257.5), rgb(73, 124, 197).
Aa
Black text reads best on this color (4.97:1).
About this color
#497CC5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.125 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.023 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.97:1 |
| White text | 4.22:1 |
Values
| HEX | #497CC5 |
| RGB | rgb(73, 124, 197) |
| HSL | hsl(215, 52%, 53%) |
| OKLCH | oklch(58.5% 0.125 257.5) |
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 #497CC5 | 4.22:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #497CC5 | 4.97:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #497CC5 text on white | 4.22:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #497CC5 text on black | 4.97:1 | AA | Lc -32.7 | 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
#CCDAEE
oklch(88.4% 0.031 257.2)
-
Step 300
300
#AAC2E6
oklch(80.8% 0.057 258.4)
-
Step 400
400
#7DA2D9
oklch(70.6% 0.091 258.1)
-
Step 500
500
#5B8ACE
oklch(63% 0.115 257.6)
-
Step 600
600 (this color)
#497CC5
oklch(58.5% 0.125 257.5)
-
Step 700
700
#3260A2
oklch(49% 0.118 257.6)
-
Step 800
800
#2A4F83
oklch(42.7% 0.097 257.2)
-
Step 900
900
#274269
oklch(37.7% 0.075 257.6)
-
Step 950
950
#17273D
oklch(27% 0.047 256.6)
#497CC5 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) | #5C82C8 | 0.028 |
| Deuteranopia (no green cones) | #4B76C3 | 0.016 |
| Tritanopia (no blue cones) | #008D97 | 0.105 |
| Achromatopsia (no color) | #7B7B7B | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497CC5
#497CC5
oklch(58.5% 0.125 257.5)
- #A37100
#A37100
oklch(58.5% 0.122 78)
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 #497CC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.023
- Cool Blue #4984B8 ΔE 0.034
- Steel Blue #4682B4 ΔE 0.035
- Water Blue #0E87CC ΔE 0.040
- Off Blue #5684AE ΔE 0.049
- Flat Blue #3C73A8 ΔE 0.051
- Nice Blue #107AB0 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.056
Use #497CC5 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.