#5D74B9
Closest named color: Windows Blue (#3778BF). oklch(57.2% 0.11 268.8), rgb(93, 116, 185).
Aa
Black text reads best on this color (4.66:1).
About this color
#5D74B9 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.110 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.039 away. Black text reads best on it, at 4.66:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #5D74B9 |
| RGB | rgb(93, 116, 185) |
| HSL | hsl(225, 40%, 55%) |
| OKLCH | oklch(57.2% 0.11 268.8) |
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 #5D74B9 | 4.50:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #5D74B9 | 4.66:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #5D74B9 text on white | 4.50:1 | AA | Lc 71.1 | Content text, not long reading |
| #5D74B9 text on black | 4.66:1 | AA | Lc -30.5 | 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 600.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E2
oklch(80.9% 0.05 268.8)
-
Step 400
400
#8C9FD3
oklch(70.7% 0.079 268.8)
-
Step 500
500
#7086C7
oklch(63% 0.102 269.1)
-
Step 600
600 (this color)
#5D74B9
oklch(57.2% 0.11 268.8)
-
Step 700
700
#495D9B
oklch(49.2% 0.102 268.9)
-
Step 800
800
#3C4C7D
oklch(42.7% 0.084 269)
-
Step 900
900
#334065
oklch(37.8% 0.066 268.4)
-
Step 950
950
#1E253B
oklch(26.9% 0.042 269.9)
#5D74B9 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) | #5A7BBC | 0.019 |
| Deuteranopia (no green cones) | #5073B7 | 0.017 |
| Tritanopia (no blue cones) | #36838E | 0.099 |
| Achromatopsia (no color) | #777777 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D74B9
#5D74B9
oklch(57.2% 0.11 268.8)
- #927415
#927415
oklch(57.2% 0.11 89.3)
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 #5D74B9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.039
- French Blue #436BAD ΔE 0.045
- Steel Blue #4682B4 ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.047
- Cool Blue #4984B8 ΔE 0.048
- Off Blue #5684AE ΔE 0.052
- Dull Blue #49759C ΔE 0.054
- Stormy Blue #507B9C ΔE 0.057
Use #5D74B9 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.