#4F7FDD
Closest named color: Dark Sky Blue (#448EE4). oklch(60.9% 0.152 262.4), rgb(79, 127, 221).
Aa
Black text reads best on this color (5.41:1).
About this color
#4F7FDD is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.152 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.039 away. Black text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.41:1 |
| White text | 3.88:1 |
Values
| HEX | #4F7FDD |
| RGB | rgb(79, 127, 221) |
| HSL | hsl(220, 68%, 59%) |
| OKLCH | oklch(60.9% 0.152 262.4) |
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 #4F7FDD | 3.88:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #4F7FDD | 5.41:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #4F7FDD text on white | 3.88:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #4F7FDD text on black | 5.41:1 | AA | Lc -35.7 | 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 500.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF5
oklch(88.6% 0.041 262.3)
-
Step 300
300
#A7C1F2
oklch(80.9% 0.075 262.9)
-
Step 400
400
#78A0EB
oklch(70.8% 0.119 262.3)
-
Step 500
500 (this color)
#4F7FDD
oklch(60.9% 0.152 262.4)
-
Step 600
600
#3B6DD3
oklch(55.5% 0.167 262.6)
-
Step 700
700
#2D5BB7
oklch(49.2% 0.155 262.3)
-
Step 800
800
#264B94
oklch(42.8% 0.128 262.2)
-
Step 900
900
#233F76
oklch(37.7% 0.1 262.3)
-
Step 950
950
#152545
oklch(26.9% 0.064 262.8)
#4F7FDD 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) | #5388E1 | 0.025 |
| Deuteranopia (no green cones) | #3D7BDB | 0.021 |
| Tritanopia (no blue cones) | #0094A3 | 0.126 |
| Achromatopsia (no color) | #818181 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F7FDD
#4F7FDD
oklch(60.9% 0.152 262.4)
- #A77A00
#A77A00
oklch(60.8% 0.125 82.6)
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 #4F7FDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.039
- Soft Blue #6488EA ΔE 0.039
- Water Blue #0E87CC ΔE 0.052
- Cornflower #6A79F7 ΔE 0.053
- Windows Blue #3778BF ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.059
- Clear Blue #247AFD ΔE 0.060
- Royal Blue #4169E1 ΔE 0.062
Use #4F7FDD 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.