#496DCB
Closest named color: Royal Blue (#4169E1). oklch(55.6% 0.151 265.9), rgb(73, 109, 203).
Aa
White text reads best on this color (4.84:1).
About this color
#496DCB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.151 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.037 away. White text reads best on it, at 4.84:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.33:1 |
| White text | 4.84:1 |
Values
| HEX | #496DCB |
| RGB | rgb(73, 109, 203) |
| HSL | hsl(223, 56%, 54%) |
| OKLCH | oklch(55.6% 0.151 265.9) |
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 #496DCB | 4.84:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #496DCB | 4.33:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #496DCB text on white | 4.84:1 | AA | Lc 73.3 | Content text, not long reading |
| #496DCB text on black | 4.33:1 | AA large text | Lc -28.4 | Dividers and decoration only |
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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CDD9F3
oklch(88.4% 0.038 265.8)
-
Step 300
300
#ACC0EE
oklch(80.9% 0.069 266.5)
-
Step 400
400
#819FE5
oklch(70.8% 0.108 266)
-
Step 500
500
#6185DD
oklch(63% 0.139 265.8)
-
Step 600
600 (this color)
#496DCB
oklch(55.6% 0.151 265.9)
-
Step 700
700
#3A5AB0
oklch(49% 0.142 266)
-
Step 800
800
#304A8E
oklch(42.6% 0.117 265.9)
-
Step 900
900
#2B3F71
oklch(37.8% 0.089 265.9)
-
Step 950
950
#192542
oklch(27% 0.057 265.8)
#496DCB 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) | #3E78CF | 0.029 |
| Deuteranopia (no green cones) | #276CC9 | 0.030 |
| Tritanopia (no blue cones) | #008392 | 0.128 |
| Achromatopsia (no color) | #717171 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #496DCB
#496DCB
oklch(55.6% 0.151 265.9)
- #916D00
#916D00
oklch(55.6% 0.114 85.6)
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 #496DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.037
- Windows Blue #3778BF ΔE 0.040
- French Blue #436BAD ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.049
- Mid Blue #276AB3 ΔE 0.051
- Iris #6258C4 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.060
- Warm Blue #4B57DB ΔE 0.061
Use #496DCB 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.