#497DDE
Closest named color: Dark Sky Blue (#448EE4). oklch(60.2% 0.158 261.6), rgb(73, 125, 222).
Aa
Black text reads best on this color (5.27:1).
About this color
#497DDE is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.158 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.044 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #497DDE |
| RGB | rgb(73, 125, 222) |
| HSL | hsl(219, 69%, 58%) |
| OKLCH | oklch(60.2% 0.158 261.6) |
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 #497DDE | 3.98:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #497DDE | 5.27:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #497DDE text on white | 3.98:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #497DDE text on black | 5.27:1 | AA | Lc -34.8 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF6
oklch(88.5% 0.042 261.7)
-
Step 300
300
#A5C1F3
oklch(80.8% 0.077 261.9)
-
Step 400
400
#75A0EE
oklch(70.7% 0.124 261.7)
-
Step 500
500 (this color)
#497DDE
oklch(60.2% 0.158 261.6)
-
Step 600
600
#366DD6
oklch(55.5% 0.172 261.8)
-
Step 700
700
#295BBA
oklch(49.2% 0.16 261.7)
-
Step 800
800
#234B96
oklch(42.8% 0.131 261.5)
-
Step 900
900
#213F78
oklch(37.7% 0.104 261.8)
-
Step 950
950
#142546
oklch(26.9% 0.066 262.3)
#497DDE 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) | #4E87E2 | 0.028 |
| Deuteranopia (no green cones) | #3479DC | 0.022 |
| Tritanopia (no blue cones) | #0093A3 | 0.127 |
| Achromatopsia (no color) | #7F7F7F | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497DDE
#497DDE
oklch(60.2% 0.158 261.6)
- #A67800
#A67800
oklch(60.3% 0.124 81.7)
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 #497DDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.044
- Soft Blue #6488EA ΔE 0.046
- Water Blue #0E87CC ΔE 0.052
- Windows Blue #3778BF ΔE 0.052
- Clear Blue #247AFD ΔE 0.054
- Royal Blue #4169E1 ΔE 0.054
- Cornflower #6A79F7 ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.065
Use #497DDE 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.