#4781D7
Closest named color: Dark Sky Blue (#448EE4). oklch(60.6% 0.145 258.2), rgb(71, 129, 215).
Aa
Black text reads best on this color (5.38:1).
About this color
#4781D7 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.145 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.037 away. Black text reads best on it, at 5.38:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.38:1 |
| White text | 3.89:1 |
Values
| HEX | #4781D7 |
| RGB | rgb(71, 129, 215) |
| HSL | hsl(216, 64%, 56%) |
| OKLCH | oklch(60.6% 0.145 258.2) |
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 #4781D7 | 3.89:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #4781D7 | 5.38:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #4781D7 text on white | 3.89:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #4781D7 text on black | 5.38:1 | AA | Lc -35.5 | 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
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A5C2EF
oklch(80.8% 0.071 259.1)
-
Step 400
400
#74A2E7
oklch(70.8% 0.113 258.3)
-
Step 500
500 (this color)
#4781D7
oklch(60.6% 0.145 258.2)
-
Step 600
600
#3171CD
oklch(55.6% 0.157 258)
-
Step 700
700
#245EB2
oklch(49.1% 0.147 258.2)
-
Step 800
800
#1F4D90
oklch(42.7% 0.122 258.2)
-
Step 900
900
#1F4173
oklch(37.8% 0.095 258.1)
-
Step 950
950
#132643
oklch(26.9% 0.06 258.6)
#4781D7 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) | #5A88DA | 0.029 |
| Deuteranopia (no green cones) | #447BD5 | 0.017 |
| Tritanopia (no blue cones) | #0095A1 | 0.118 |
| Achromatopsia (no color) | #818181 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4781D7
#4781D7
oklch(60.6% 0.145 258.2)
- #AB7700
#AB7700
oklch(60.7% 0.126 78.2)
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 #4781D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.037
- Water Blue #0E87CC ΔE 0.039
- Windows Blue #3778BF ΔE 0.046
- Soft Blue #6488EA ΔE 0.047
- Cool Blue #4984B8 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.066
Use #4781D7 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.