#4B4E73
Closest named color: Dusk (#4E5481). oklch(43.7% 0.061 280), rgb(75, 78, 115).
Aa
White text reads best on this color (7.96:1).
About this color
#4B4E73 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.061 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.027 away. White text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.63:1 |
| White text | 7.96:1 |
Values
| HEX | #4B4E73 |
| RGB | rgb(75, 78, 115) |
| HSL | hsl(236, 21%, 37%) |
| OKLCH | oklch(43.7% 0.061 280) |
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 #4B4E73 | 7.96:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #4B4E73 | 2.63:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #4B4E73 text on white | 7.96:1 | AAA | Lc 87.6 | Fine for body text |
| #4B4E73 text on black | 2.63:1 | Fails | Lc -14.5 | Not readable |
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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BBBFD8
oklch(80.9% 0.035 278.4)
-
Step 400
400
#999DC4
oklch(70.6% 0.057 280.2)
-
Step 500
500
#8085B5
oklch(63.1% 0.072 279.5)
-
Step 600
600
#6A6EA1
oklch(55.6% 0.079 280)
-
Step 700
700
#585C8A
oklch(49.1% 0.074 279.5)
-
Step 800
800 (this color)
#4B4E73
oklch(43.7% 0.061 280)
-
Step 900
900
#3C3F5B
oklch(37.7% 0.048 279.1)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#4B4E73 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) | #435275 | 0.015 |
| Deuteranopia (no green cones) | #414F72 | 0.015 |
| Tritanopia (no blue cones) | #40555B | 0.054 |
| Achromatopsia (no color) | #515151 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4E73
#4B4E73
oklch(43.7% 0.061 280)
- #5A5329
#5A5329
oklch(43.9% 0.061 100)
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 #4B4E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.027
- Dusty Grape #545775 ΔE 0.031
- YInMn Blue #415A77 ΔE 0.036
- Twilight #4E518B ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.057
- Dusk Blue #26538D ΔE 0.058
- Light Navy #155084 ΔE 0.062
Use #4B4E73 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.