#4B5366
Closest named color: Dusty Grape (#545775). oklch(44.3% 0.033 267.1), rgb(75, 83, 102).
Aa
White text reads best on this color (7.69:1).
About this color
#4B5366 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.033 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.030 away. White text reads best on it, at 7.69:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.72:1 |
| White text | 7.69:1 |
Values
| HEX | #4B5366 |
| RGB | rgb(75, 83, 102) |
| HSL | hsl(222, 15%, 35%) |
| OKLCH | oklch(44.3% 0.033 267.1) |
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 #4B5366 | 7.69:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #4B5366 | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #4B5366 text on white | 7.69:1 | AAA | Lc 86.7 | Fine for body text |
| #4B5366 text on black | 2.72:1 | Fails | Lc -15.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BBC1CE
oklch(81% 0.019 266)
-
Step 400
400
#98A0B4
oklch(70.6% 0.031 268.2)
-
Step 500
500
#7F89A2
oklch(63.1% 0.039 268.1)
-
Step 600
600
#68738D
oklch(55.6% 0.043 267)
-
Step 700
700
#576078
oklch(49.1% 0.04 268.8)
-
Step 800
800 (this color)
#4B5366
oklch(44.3% 0.033 267.1)
-
Step 900
900
#3B4150
oklch(37.6% 0.027 268)
-
Step 950
950
#23262F
oklch(26.9% 0.017 270.7)
#4B5366 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) | #4D5467 | 0.005 |
| Deuteranopia (no green cones) | #4B5266 | 0.003 |
| Tritanopia (no blue cones) | #445759 | 0.031 |
| Achromatopsia (no color) | #535353 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5366
#4B5366
oklch(44.3% 0.033 267.1)
- #5B523E
#5B523E
oklch(44.2% 0.033 86.6)
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 #4B5366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.030
- YInMn Blue #415A77 ΔE 0.031
- Dusk #4E5481 ΔE 0.045
- Slate #516572 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.061
- Twilight #4E518B ΔE 0.064
- Petrol #005F6A ΔE 0.066
Use #4B5366 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.