#4782DB
Closest named color: Dark Sky Blue (#448EE4). oklch(61% 0.149 258.5), rgb(71, 130, 219).
Aa
Black text reads best on this color (5.48:1).
About this color
#4782DB is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.149 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.032 away. Black text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.48:1 |
| White text | 3.82:1 |
Values
| HEX | #4782DB |
| RGB | rgb(71, 130, 219) |
| HSL | hsl(216, 67%, 57%) |
| OKLCH | oklch(61% 0.149 258.5) |
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 #4782DB | 3.82:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #4782DB | 5.48:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #4782DB text on white | 3.82:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #4782DB text on black | 5.48:1 | AA | Lc -36.2 | 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
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DAF4
oklch(88.4% 0.04 258.8)
-
Step 300
300
#A4C2F0
oklch(80.8% 0.073 258.8)
-
Step 400
400
#73A2E9
oklch(70.8% 0.116 258.4)
-
Step 500
500 (this color)
#4782DB
oklch(61% 0.149 258.5)
-
Step 600
600
#3070D0
oklch(55.6% 0.162 258.6)
-
Step 700
700
#225DB4
oklch(49% 0.151 258.6)
-
Step 800
800
#1E4D92
oklch(42.8% 0.125 258.4)
-
Step 900
900
#1E4174
oklch(37.8% 0.096 258)
-
Step 950
950
#122644
oklch(26.9% 0.062 258.3)
#4782DB 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) | #598ADF | 0.030 |
| Deuteranopia (no green cones) | #427CD9 | 0.017 |
| Tritanopia (no blue cones) | #0097A4 | 0.120 |
| Achromatopsia (no color) | #828282 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4782DB
#4782DB
oklch(61% 0.149 258.5)
- #AC7800
#AC7800
oklch(61% 0.127 78.4)
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 #4782DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.032
- Water Blue #0E87CC ΔE 0.042
- Soft Blue #6488EA ΔE 0.042
- Windows Blue #3778BF ΔE 0.051
- Chefchaouen Blue #4895EF ΔE 0.055
- Cool Blue #4984B8 ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.061
- Steel Blue #4682B4 ΔE 0.061
Use #4782DB 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.