#497EBA
Closest named color: Steel Blue (#4682B4). oklch(58.3% 0.109 252.8), rgb(73, 126, 186).
Aa
Black text reads best on this color (4.97:1).
About this color
#497EBA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.109 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.017 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.97:1 |
| White text | 4.21:1 |
Values
| HEX | #497EBA |
| RGB | rgb(73, 126, 186) |
| HSL | hsl(212, 45%, 51%) |
| OKLCH | oklch(58.3% 0.109 252.8) |
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 #497EBA | 4.21:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #497EBA | 4.97:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #497EBA text on white | 4.21:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #497EBA 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ABC3E0
oklch(80.9% 0.049 253.3)
-
Step 400
400
#7DA4D1
oklch(70.7% 0.079 252.5)
-
Step 500
500
#5C8DC5
oklch(63.2% 0.1 252.7)
-
Step 600
600 (this color)
#497EBA
oklch(58.3% 0.109 252.8)
-
Step 700
700
#336398
oklch(49.2% 0.1 252.5)
-
Step 800
800
#2B517C
oklch(42.8% 0.084 252.9)
-
Step 900
900
#274363
oklch(37.6% 0.065 252.8)
-
Step 950
950
#17273A
oklch(26.8% 0.042 253.5)
#497EBA 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) | #6581BD | 0.034 |
| Deuteranopia (no green cones) | #5676B9 | 0.024 |
| Tritanopia (no blue cones) | #008C93 | 0.091 |
| Achromatopsia (no color) | #7B7B7B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497EBA
#497EBA
oklch(58.3% 0.109 252.8)
- #A27025
#A27025
oklch(58.4% 0.109 73)
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 #497EBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.017
- Cool Blue #4984B8 ΔE 0.018
- Windows Blue #3778BF ΔE 0.027
- Off Blue #5684AE ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.039
- Water Blue #0E87CC ΔE 0.041
- Flat Blue #3C73A8 ΔE 0.042
- Nice Blue #107AB0 ΔE 0.043
Use #497EBA 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.