#5974CF
Closest named color: Windows Blue (#3778BF). oklch(58.2% 0.143 269.2), rgb(89, 116, 207).
Aa
Black text reads best on this color (4.82:1).
About this color
#5974CF is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.143 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.045 away. Black text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #5974CF |
| RGB | rgb(89, 116, 207) |
| HSL | hsl(226, 55%, 58%) |
| OKLCH | oklch(58.2% 0.143 269.2) |
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 #5974CF | 4.35:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #5974CF | 4.82:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #5974CF text on white | 4.35:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #5974CF text on black | 4.82:1 | AA | Lc -31.7 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#B0C0EB
oklch(81% 0.063 269)
-
Step 400
400
#869EE1
oklch(70.7% 0.102 268.6)
-
Step 500
500
#6984D9
oklch(63.1% 0.132 269.1)
-
Step 600
600 (this color)
#5974CF
oklch(58.2% 0.143 269.2)
-
Step 700
700
#435AAB
oklch(49.2% 0.132 269.2)
-
Step 800
800
#374A8B
oklch(42.8% 0.11 269.1)
-
Step 900
900
#2F3E6F
oklch(37.7% 0.086 269.2)
-
Step 950
950
#1C2541
oklch(27.1% 0.054 269.1)
#5974CF 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) | #4B7FD2 | 0.030 |
| Deuteranopia (no green cones) | #3C74CD | 0.030 |
| Tritanopia (no blue cones) | #028897 | 0.128 |
| Achromatopsia (no color) | #797979 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5974CF
#5974CF
oklch(58.2% 0.143 269.2)
- #977600
#977600
oklch(58.2% 0.119 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 #5974CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.045
- Royal Blue #4169E1 ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.054
- French Blue #436BAD ΔE 0.063
- Cool Blue #4984B8 ΔE 0.064
- Soft Blue #6488EA ΔE 0.065
- Steel Blue #4682B4 ΔE 0.065
- Slate Blue #6A5ACD ΔE 0.065
Use #5974CF 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.