#4C4D9C
Closest named color: Twilight (#4E518B). oklch(46.1% 0.125 279.7), rgb(76, 77, 156).
Aa
White text reads best on this color (7.37:1).
About this color
#4C4D9C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.125 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.032 away. White text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #4C4D9C |
| RGB | rgb(76, 77, 156) |
| HSL | hsl(239, 34%, 45%) |
| OKLCH | oklch(46.1% 0.125 279.7) |
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 #4C4D9C | 7.37:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #4C4D9C | 2.84:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #4C4D9C text on white | 7.37:1 | AAA | Lc 85.4 | Fine for body text |
| #4C4D9C text on black | 2.84:1 | Fails | Lc -16.6 | 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
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300
#B8BDE8
oklch(80.9% 0.061 279.7)
-
Step 400
400
#949ADC
oklch(70.7% 0.097 279.6)
-
Step 500
500
#7B80D3
oklch(63.2% 0.124 279.6)
-
Step 600
600
#6568C0
oklch(55.7% 0.134 279.6)
-
Step 700
700 (this color)
#4C4D9C
oklch(46.1% 0.125 279.7)
-
Step 800
800
#454786
oklch(42.8% 0.103 279.8)
-
Step 900
900
#393C6B
oklch(37.7% 0.08 279.1)
-
Step 950
950
#22233F
oklch(27% 0.052 280.8)
#4C4D9C 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) | #28599F | 0.048 |
| Deuteranopia (no green cones) | #20539A | 0.050 |
| Tritanopia (no blue cones) | #2C5E6D | 0.109 |
| Achromatopsia (no color) | #565656 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C4D9C
#4C4D9C
oklch(46.1% 0.125 279.7)
- #655900
#655900
oklch(46.1% 0.096 100.2)
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 #4C4D9C, closest first.
No curated palette has a color within ΔE 0.04 of #4C4D9C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.032
- Blueberry #464196 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.049
- Dusk #4E5481 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.063
Use #4C4D9C 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.