#4783DE
Closest named color: Dark Sky Blue (#448EE4). oklch(61.4% 0.152 258.6), rgb(71, 131, 222).
Aa
Black text reads best on this color (5.56:1).
About this color
#4783DE is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.152 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.029 away. Black text reads best on it, at 5.56:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.56:1 |
| White text | 3.77:1 |
Values
| HEX | #4783DE |
| RGB | rgb(71, 131, 222) |
| HSL | hsl(216, 70%, 57%) |
| OKLCH | oklch(61.4% 0.152 258.6) |
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 #4783DE | 3.77:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #4783DE | 5.56:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #4783DE text on white | 3.77:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #4783DE text on black | 5.56:1 | AA | Lc -36.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DAF5
oklch(88.4% 0.042 259.6)
-
Step 300
300
#A4C2F1
oklch(80.8% 0.074 259.3)
-
Step 400
400
#72A2EA
oklch(70.8% 0.118 258.3)
-
Step 500
500 (this color)
#4783DE
oklch(61.4% 0.152 258.6)
-
Step 600
600
#2E70D2
oklch(55.6% 0.165 258.6)
-
Step 700
700
#215DB6
oklch(49.1% 0.154 258.7)
-
Step 800
800
#1D4D93
oklch(42.8% 0.127 258.3)
-
Step 900
900
#1E4075
oklch(37.6% 0.099 259)
-
Step 950
950
#122645
oklch(27% 0.064 258.9)
#4783DE 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) | #598BE2 | 0.030 |
| Deuteranopia (no green cones) | #407DDC | 0.018 |
| Tritanopia (no blue cones) | #0098A6 | 0.121 |
| Achromatopsia (no color) | #838383 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4783DE
#4783DE
oklch(61.4% 0.152 258.6)
- #AD7900
#AD7900
oklch(61.3% 0.128 78.6)
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 #4783DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.029
- Soft Blue #6488EA ΔE 0.039
- Water Blue #0E87CC ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.051
- Dodger Blue #1E90FF ΔE 0.056
- Windows Blue #3778BF ΔE 0.056
- Cool Blue #4984B8 ΔE 0.059
- Clear Blue #247AFD ΔE 0.060
Use #4783DE 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.