#47509C
Closest named color: Twilight (#4E518B). oklch(46.3% 0.122 275.5), rgb(71, 80, 156).
Aa
White text reads best on this color (7.25:1).
About this color
#47509C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.122 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 7.25:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #47509C |
| RGB | rgb(71, 80, 156) |
| HSL | hsl(234, 37%, 45%) |
| OKLCH | oklch(46.3% 0.122 275.5) |
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 #47509C | 7.25:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #47509C | 2.89:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #47509C text on white | 7.25:1 | AAA | Lc 85.0 | Fine for body text |
| #47509C text on black | 2.89:1 | Fails | Lc -17.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B5BEE7
oklch(80.8% 0.059 275.3)
-
Step 400
400
#909CDC
oklch(70.8% 0.095 275.6)
-
Step 500
500
#7582D2
oklch(63.1% 0.121 275.4)
-
Step 600
600
#5F6ABF
oklch(55.6% 0.131 275.7)
-
Step 700
700 (this color)
#47509C
oklch(46.3% 0.122 275.5)
-
Step 800
800
#404886
oklch(42.6% 0.102 275.6)
-
Step 900
900
#363D6B
oklch(37.7% 0.079 275.4)
-
Step 950
950
#20243F
oklch(27.1% 0.05 276.1)
#47509C 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) | #2D5A9F | 0.037 |
| Deuteranopia (no green cones) | #22539A | 0.041 |
| Tritanopia (no blue cones) | #1F616E | 0.109 |
| Achromatopsia (no color) | #575757 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47509C
#47509C
oklch(46.3% 0.122 275.5)
- #695800
#695800
oklch(46.3% 0.095 96)
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 #47509C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.039
- Blueberry #464196 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.047
- Dusk Blue #26538D ΔE 0.047
- Dusk #4E5481 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
Use #47509C 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.