#4F7FDC
Closest named color: Dark Sky Blue (#448EE4). oklch(60.8% 0.151 262.3), rgb(79, 127, 220).
Aa
Black text reads best on this color (5.40:1).
About this color
#4F7FDC is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.151 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 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #4F7FDC |
| RGB | rgb(79, 127, 220) |
| HSL | hsl(220, 67%, 59%) |
| OKLCH | oklch(60.8% 0.151 262.3) |
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 #4F7FDC | 3.88:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #4F7FDC | 5.40:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #4F7FDC text on white | 3.88:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #4F7FDC text on black | 5.40:1 | AA | Lc -35.6 | 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
#A7C1F1
oklch(80.8% 0.074 262.5)
-
Step 400
400
#78A0EA
oklch(70.7% 0.118 262.1)
-
Step 500
500 (this color)
#4F7FDC
oklch(60.8% 0.151 262.3)
-
Step 600
600
#3B6ED2
oklch(55.7% 0.164 262.2)
-
Step 700
700
#2E5BB6
oklch(49.1% 0.153 262.4)
-
Step 800
800
#264B93
oklch(42.7% 0.126 262.1)
-
Step 900
900
#243F75
oklch(37.7% 0.098 262.6)
-
Step 950
950
#152545
oklch(26.9% 0.064 262.8)
#4F7FDC 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) | #5488E0 | 0.025 |
| Deuteranopia (no green cones) | #3E7BDA | 0.021 |
| Tritanopia (no blue cones) | #0094A3 | 0.125 |
| Achromatopsia (no color) | #818181 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F7FDC
#4F7FDC
oklch(60.8% 0.151 262.3)
- #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 #4F7FDC, 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 0.040
- Water Blue #0E87CC ΔE 0.051
- Windows Blue #3778BF ΔE 0.054
- Cornflower #6A79F7 ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.060
- Cool Blue #4984B8 ΔE 0.061
- Clear Blue #247AFD ΔE 0.061
Use #4F7FDC 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.