#4B5D8A
Closest named color: Dusky Blue (#475F94). oklch(48.3% 0.076 266.9), rgb(75, 93, 138).
Aa
White text reads best on this color (6.49:1).
About this color
#4B5D8A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.076 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.016 away. White text reads best on it, at 6.49:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.23:1 |
| White text | 6.49:1 |
Values
| HEX | #4B5D8A |
| RGB | rgb(75, 93, 138) |
| HSL | hsl(223, 30%, 42%) |
| OKLCH | oklch(48.3% 0.076 266.9) |
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 #4B5D8A | 6.49:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #4B5D8A | 3.23:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #4B5D8A text on white | 6.49:1 | AA | Lc 82.2 | Fine for body text |
| #4B5D8A text on black | 3.23:1 | AA large text | Lc -19.7 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E7
oklch(88.5% 0.02 267.3)
-
Step 300
300
#B6C1D9
oklch(81% 0.036 265.9)
-
Step 400
400
#90A0C6
oklch(70.7% 0.059 267)
-
Step 500
500
#7588B8
oklch(63% 0.076 267.5)
-
Step 600
600
#5E72A4
oklch(55.7% 0.082 267.1)
-
Step 700
700 (this color)
#4B5D8A
oklch(48.3% 0.076 266.9)
-
Step 800
800
#3F4E72
oklch(42.7% 0.063 266.5)
-
Step 900
900
#36415C
oklch(37.8% 0.049 267)
-
Step 950
950
#1F2636
oklch(26.9% 0.032 266.1)
#4B5D8A 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) | #4D618C | 0.012 |
| Deuteranopia (no green cones) | #465B89 | 0.009 |
| Tritanopia (no blue cones) | #34666D | 0.068 |
| Achromatopsia (no color) | #5E5E5E | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5D8A
#4B5D8A
oklch(48.3% 0.076 266.9)
- #715C27
#715C27
oklch(48.4% 0.076 87.6)
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 #4B5D8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.016
- Denim #3B638C ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.025
- Dusk #4E5481 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.035
- Twilight #4E518B ΔE 0.035
- Dusty Grape #545775 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.036
Use #4B5D8A 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.