#498BEF
Closest named color: Dark Sky Blue (#448EE4). oklch(64.2% 0.165 258.6), rgb(73, 139, 239).
Aa
Black text reads best on this color (6.22:1).
About this color
#498BEF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.165 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.020 away. Black text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.22:1 |
| White text | 3.37:1 |
Values
| HEX | #498BEF |
| RGB | rgb(73, 139, 239) |
| HSL | hsl(216, 84%, 61%) |
| OKLCH | oklch(64.2% 0.165 258.6) |
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 #498BEF | 3.37:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #498BEF | 6.22:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #498BEF text on white | 3.37:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #498BEF text on black | 6.22:1 | AA | Lc -40.8 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DBF7
oklch(88.6% 0.044 258)
-
Step 300
300
#A1C2F5
oklch(80.8% 0.081 259)
-
Step 400
400
#6DA1F0
oklch(70.6% 0.129 258.5)
-
Step 500
500 (this color)
#498BEF
oklch(64.2% 0.165 258.6)
-
Step 600
600
#256FD9
oklch(55.7% 0.178 258.4)
-
Step 700
700
#185CBD
oklch(49.2% 0.167 258.6)
-
Step 800
800
#174C99
oklch(42.9% 0.138 258.5)
-
Step 900
900
#194079
oklch(37.7% 0.107 258.2)
-
Step 950
950
#102647
oklch(27% 0.068 258.4)
#498BEF 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) | #5B94F3 | 0.031 |
| Deuteranopia (no green cones) | #3F85ED | 0.019 |
| Tritanopia (no blue cones) | #00A2B1 | 0.131 |
| Achromatopsia (no color) | #8C8C8C | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #498BEF
#498BEF
oklch(64.2% 0.165 258.6)
- #B88100
#B88100
oklch(64.2% 0.134 78.6)
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 #498BEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.020
- Soft Blue #6488EA ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.027
- Dodger Blue #1E90FF ΔE 0.032
- Cornflower Blue #6495ED ΔE 0.040
- Cornflower #6A79F7 ΔE 0.055
- Clear Blue #247AFD ΔE 0.060
- Water Blue #0E87CC ΔE 0.065
Use #498BEF 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.