#497CFB
Closest named color: Clear Blue (#247AFD). oklch(62% 0.197 264.8), rgb(73, 124, 251).
Aa
Black text reads best on this color (5.55:1).
About this color
#497CFB is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.197 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.027 away. Black text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.55:1 |
| White text | 3.77:1 |
Values
| HEX | #497CFB |
| RGB | rgb(73, 124, 251) |
| HSL | hsl(223, 96%, 64%) |
| OKLCH | oklch(62% 0.197 264.8) |
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 #497CFB | 3.77:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #497CFB | 5.55:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #497CFB text on white | 3.77:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #497CFB text on black | 5.55:1 | AA | Lc -36.8 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FE
oklch(88.5% 0.054 265.8)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#719DFF
oklch(70.8% 0.152 264.6)
-
Step 500
500 (this color)
#497CFB
oklch(62% 0.197 264.8)
-
Step 600
600
#3265EE
oklch(55.6% 0.214 264.7)
-
Step 700
700
#2652CF
oklch(49% 0.199 264.9)
-
Step 800
800
#2044A8
oklch(42.7% 0.166 264.9)
-
Step 900
900
#1E3B85
oklch(37.7% 0.129 264.7)
-
Step 950
950
#12234E
oklch(26.9% 0.082 265.1)
#497CFB 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) | #2B8CFF | 0.041 |
| Deuteranopia (no green cones) | #007CF8 | 0.036 |
| Tritanopia (no blue cones) | #009AB0 | 0.157 |
| Achromatopsia (no color) | #838383 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497CFB
#497CFB
oklch(62% 0.197 264.8)
- #A97E00
#A97E00
oklch(61.9% 0.127 84.5)
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 #497CFB, closest first.
No curated palette has a color within ΔE 0.04 of #497CFB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.027
- Cornflower #6A79F7 ΔE 0.036
- Dodger Blue #1E90FF ΔE 0.051
- Soft Blue #6488EA ΔE 0.053
- Cerulean Blue #056EEE ΔE 0.060
- Royal Blue #4169E1 ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.062
- Neon Blue #4361EE ΔE 0.068
Use #497CFB 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.