#4A7DCD
Closest named color: Windows Blue (#3778BF). oklch(59.2% 0.135 259.1), rgb(74, 125, 205).
Aa
Black text reads best on this color (5.10:1).
About this color
#4A7DCD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.135 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.031 away. Black text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #4A7DCD |
| RGB | rgb(74, 125, 205) |
| HSL | hsl(217, 57%, 55%) |
| OKLCH | oklch(59.2% 0.135 259.1) |
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 #4A7DCD | 4.11:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #4A7DCD | 5.10:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #4A7DCD text on white | 4.11:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #4A7DCD text on black | 5.10:1 | AA | Lc -33.6 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAF0
oklch(88.5% 0.034 259.4)
-
Step 300
300
#A9C2E8
oklch(80.8% 0.061 258.7)
-
Step 400
400
#7CA2DD
oklch(70.8% 0.097 259)
-
Step 500
500
#5A89D4
oklch(63% 0.125 259.4)
-
Step 600
600 (this color)
#4A7DCD
oklch(59.2% 0.135 259.1)
-
Step 700
700
#315FA7
oklch(49.1% 0.126 259.1)
-
Step 800
800
#2A4E87
oklch(42.7% 0.104 259.2)
-
Step 900
900
#26416C
oklch(37.6% 0.081 259.3)
-
Step 950
950
#17263F
oklch(26.9% 0.051 260.2)
#4A7DCD 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) | #5A84D0 | 0.027 |
| Deuteranopia (no green cones) | #4777CB | 0.017 |
| Tritanopia (no blue cones) | #008F9B | 0.111 |
| Achromatopsia (no color) | #7D7D7D | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A7DCD
#4A7DCD
oklch(59.2% 0.135 259.1)
- #A57400
#A57400
oklch(59.4% 0.123 79.2)
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 #4A7DCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.031
- Water Blue #0E87CC ΔE 0.040
- Cool Blue #4984B8 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.052
- Off Blue #5684AE ΔE 0.057
- Soft Blue #6488EA ΔE 0.060
- Nice Blue #107AB0 ΔE 0.062
Use #4A7DCD 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.