#4780D1
Closest named color: Water Blue (#0E87CC). oklch(60% 0.138 257.4), rgb(71, 128, 209).
Aa
Black text reads best on this color (5.27:1).
About this color
#4780D1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.138 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.036 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #4780D1 |
| RGB | rgb(71, 128, 209) |
| HSL | hsl(215, 60%, 55%) |
| OKLCH | oklch(60% 0.138 257.4) |
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 #4780D1 | 3.98:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #4780D1 | 5.27:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #4780D1 text on white | 3.98:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #4780D1 text on black | 5.27:1 | AA | Lc -34.8 | 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
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF2
oklch(88.6% 0.037 256)
-
Step 300
300
#A6C3ED
oklch(81% 0.068 257.6)
-
Step 400
400
#75A2E3
oklch(70.6% 0.108 257.5)
-
Step 500
500 (this color)
#4780D1
oklch(60% 0.138 257.4)
-
Step 600
600
#3372C9
oklch(55.6% 0.15 257.3)
-
Step 700
700
#265FAE
oklch(49.1% 0.139 257.5)
-
Step 800
800
#214E8D
oklch(42.8% 0.116 257.5)
-
Step 900
900
#204170
oklch(37.6% 0.09 257.5)
-
Step 950
950
#132742
oklch(27.1% 0.057 256.4)
#4780D1 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) | #5C86D4 | 0.029 |
| Deuteranopia (no green cones) | #477ACF | 0.016 |
| Tritanopia (no blue cones) | #00939E | 0.113 |
| Achromatopsia (no color) | #7F7F7F | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4780D1
#4780D1
oklch(60% 0.138 257.4)
- #A97500
#A97500
oklch(60% 0.125 77.7)
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 #4780D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.036
- Windows Blue #3778BF ΔE 0.038
- Cool Blue #4984B8 ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.043
- Steel Blue #4682B4 ΔE 0.047
- Soft Blue #6488EA ΔE 0.054
- Off Blue #5684AE ΔE 0.059
- Faded Blue #658CBB ΔE 0.063
Use #4780D1 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.