#4F79DF
Closest named color: Royal Blue (#4169E1). oklch(59.7% 0.162 265), rgb(79, 121, 223).
Aa
Black text reads best on this color (5.13:1).
About this color
#4F79DF is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.162 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.046 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #4F79DF |
| RGB | rgb(79, 121, 223) |
| HSL | hsl(223, 69%, 59%) |
| OKLCH | oklch(59.7% 0.162 265) |
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 #4F79DF | 4.09:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #4F79DF | 5.13:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #4F79DF text on white | 4.09:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #4F79DF text on black | 5.13:1 | AA | Lc -33.9 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300
#A8C0F5
oklch(80.9% 0.08 265.7)
-
Step 400
400
#7A9EF0
oklch(70.7% 0.127 265.3)
-
Step 500
500 (this color)
#4F79DF
oklch(59.7% 0.162 265)
-
Step 600
600
#3F6AD9
oklch(55.5% 0.177 265.1)
-
Step 700
700
#3258BC
oklch(49.1% 0.164 265.2)
-
Step 800
800
#294998
oklch(42.8% 0.135 264.7)
-
Step 900
900
#253E79
oklch(37.8% 0.105 264.6)
-
Step 950
950
#162547
oklch(27.1% 0.066 264.5)
#4F79DF 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) | #4684E3 | 0.028 |
| Deuteranopia (no green cones) | #2C77DD | 0.031 |
| Tritanopia (no blue cones) | #0090A1 | 0.134 |
| Achromatopsia (no color) | #7D7D7D | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F79DF
#4F79DF
oklch(59.7% 0.162 265)
- #A17800
#A17800
oklch(59.7% 0.122 84.6)
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 #4F79DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.046
- Cornflower #6A79F7 ΔE 0.049
- Soft Blue #6488EA ΔE 0.050
- Clear Blue #247AFD ΔE 0.053
- Dark Sky Blue #448EE4 ΔE 0.054
- Windows Blue #3778BF ΔE 0.056
- Cerulean Blue #056EEE ΔE 0.062
- Water Blue #0E87CC ΔE 0.062
Use #4F79DF 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.