#47537C
Closest named color: Dusk (#4E5481). oklch(45% 0.069 271), rgb(71, 83, 124).
Aa
White text reads best on this color (7.51:1).
About this color
#47537C is a medium-dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.069 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.014 away. White text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #47537C |
| RGB | rgb(71, 83, 124) |
| HSL | hsl(226, 27%, 38%) |
| OKLCH | oklch(45% 0.069 271) |
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 #47537C | 7.51:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #47537C | 2.79:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #47537C text on white | 7.51:1 | AAA | Lc 86.1 | Fine for body text |
| #47537C text on black | 2.79:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E8
oklch(88.5% 0.022 268.4)
-
Step 300
300
#B7C0DC
oklch(81% 0.041 271.4)
-
Step 400
400
#919FCA
oklch(70.7% 0.065 270.6)
-
Step 500
500
#7787BC
oklch(63.2% 0.082 271)
-
Step 600
600
#6070A8
oklch(55.6% 0.089 271.1)
-
Step 700
700
#4F5E90
oklch(49.2% 0.083 270.4)
-
Step 800
800 (this color)
#47537C
oklch(45% 0.069 271)
-
Step 900
900
#37405E
oklch(37.7% 0.053 270.9)
-
Step 950
950
#202637
oklch(27.1% 0.033 269.2)
#47537C 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) | #45577E | 0.012 |
| Deuteranopia (no green cones) | #40527B | 0.011 |
| Tritanopia (no blue cones) | #365B62 | 0.061 |
| Achromatopsia (no color) | #555555 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47537C
#47537C
oklch(45% 0.069 271)
- #645424
#645424
oklch(45.1% 0.069 91)
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 #47537C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.014
- YInMn Blue #415A77 ΔE 0.025
- Dusty Grape #545775 ΔE 0.027
- Twilight #4E518B ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.039
- Dusk Blue #26538D ΔE 0.046
- Dusky Blue #475F94 ΔE 0.047
Use #47537C 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.