#5D79CF
Closest named color: Windows Blue (#3778BF). oklch(59.5% 0.135 268.5), rgb(93, 121, 207).
Aa
Black text reads best on this color (5.10:1).
About this color
#5D79CF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.135 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.047 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 | #5D79CF |
| RGB | rgb(93, 121, 207) |
| HSL | hsl(225, 54%, 59%) |
| OKLCH | oklch(59.5% 0.135 268.5) |
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 #5D79CF | 4.11:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #5D79CF | 5.10:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #5D79CF text on white | 4.11:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #5D79CF text on black | 5.10:1 | AA | Lc -33.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AFC0EC
oklch(81% 0.065 268.4)
-
Step 400
400
#859EE3
oklch(70.8% 0.105 268.4)
-
Step 500
500 (this color)
#5D79CF
oklch(59.5% 0.135 268.5)
-
Step 600
600
#4F6CC9
oklch(55.6% 0.148 268.3)
-
Step 700
700
#405AAD
oklch(49.1% 0.136 268.1)
-
Step 800
800
#354A8C
oklch(42.7% 0.112 268.1)
-
Step 900
900
#2E3E70
oklch(37.7% 0.088 268.6)
-
Step 950
950
#1B2542
oklch(27.1% 0.056 268.2)
#5D79CF 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) | #5582D2 | 0.024 |
| Deuteranopia (no green cones) | #4778CD | 0.025 |
| Tritanopia (no blue cones) | #1B8C9A | 0.121 |
| Achromatopsia (no color) | #7D7D7D | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D79CF
#5D79CF
oklch(59.5% 0.135 268.5)
- #9C7A00
#9C7A00
oklch(59.6% 0.122 89.1)
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 #5D79CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.047
- Soft Blue #6488EA ΔE 0.054
- Cool Blue #4984B8 ΔE 0.055
- Steel Blue #4682B4 ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.060
- Water Blue #0E87CC ΔE 0.062
- Cornflower #6A79F7 ΔE 0.064
- Royal Blue #4169E1 ΔE 0.064
Use #5D79CF 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.