#4E7AC0
Closest named color: Windows Blue (#3778BF). oklch(58% 0.119 259.3), rgb(78, 122, 192).
Aa
Black text reads best on this color (4.86:1).
About this color
#4E7AC0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.119 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.023 away. Black text reads best on it, at 4.86:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.86:1 |
| White text | 4.31:1 |
Values
| HEX | #4E7AC0 |
| RGB | rgb(78, 122, 192) |
| HSL | hsl(217, 48%, 53%) |
| OKLCH | oklch(58% 0.119 259.3) |
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 #4E7AC0 | 4.31:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #4E7AC0 | 4.86:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #4E7AC0 text on white | 4.31:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #4E7AC0 text on black | 4.86:1 | AA | Lc -32.0 | 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 600.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ACC2E4
oklch(80.9% 0.054 259)
-
Step 400
400
#81A2D6
oklch(70.7% 0.085 259.3)
-
Step 500
500
#618ACB
oklch(63.1% 0.109 259.3)
-
Step 600
600 (this color)
#4E7AC0
oklch(58% 0.119 259.3)
-
Step 700
700
#39609F
oklch(49.2% 0.111 259.6)
-
Step 800
800
#2F4F81
oklch(42.8% 0.092 259)
-
Step 900
900
#2A4267
oklch(37.8% 0.07 258.8)
-
Step 950
950
#19273C
oklch(27.1% 0.044 258.3)
#4E7AC0 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) | #5D80C3 | 0.025 |
| Deuteranopia (no green cones) | #4E75BF | 0.014 |
| Tritanopia (no blue cones) | #008A94 | 0.103 |
| Achromatopsia (no color) | #7A7A7A | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E7AC0
#4E7AC0
oklch(58% 0.119 259.3)
- #9F7106
#9F7106
oklch(58.1% 0.119 79.8)
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 #4E7AC0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.023
- Steel Blue #4682B4 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.046
- Off Blue #5684AE ΔE 0.046
- Water Blue #0E87CC ΔE 0.047
- French Blue #436BAD ΔE 0.050
- Nice Blue #107AB0 ΔE 0.051
Use #4E7AC0 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.