#4C558F
Closest named color: Twilight (#4E518B). oklch(46.9% 0.094 275.5), rgb(76, 85, 143).
Aa
White text reads best on this color (6.99:1).
About this color
#4C558F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.094 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.012 away. White text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #4C558F |
| RGB | rgb(76, 85, 143) |
| HSL | hsl(232, 31%, 43%) |
| OKLCH | oklch(46.9% 0.094 275.5) |
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 #4C558F | 6.99:1 | AA | Lc -89.1 | Fine for body text |
| Black text on #4C558F | 3.00:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #4C558F text on white | 6.99:1 | AA | Lc 84.1 | Fine for body text |
| #4C558F text on black | 3.00:1 | AA large text | Lc -17.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B8BFDF
oklch(81% 0.046 275.6)
-
Step 400
400
#939DCF
oklch(70.6% 0.074 275.6)
-
Step 500
500
#7985C2
oklch(63.2% 0.093 274.9)
-
Step 600
600
#636DAE
oklch(55.5% 0.102 275.9)
-
Step 700
700 (this color)
#4C558F
oklch(46.9% 0.094 275.5)
-
Step 800
800
#434B79
oklch(42.7% 0.077 275.2)
-
Step 900
900
#383F62
oklch(37.8% 0.061 274.5)
-
Step 950
950
#212539
oklch(27% 0.038 274.9)
#4C558F 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) | #3F5C91 | 0.024 |
| Deuteranopia (no green cones) | #3A578E | 0.024 |
| Tritanopia (no blue cones) | #34616B | 0.084 |
| Achromatopsia (no color) | #595959 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C558F
#4C558F
oklch(46.9% 0.094 275.5)
- #6B5905
#6B5905
oklch(46.8% 0.094 95)
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 #4C558F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.012
- Dusk #4E5481 ΔE 0.023
- Denim Blue #3B5B92 ΔE 0.025
- Dusky Blue #475F94 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.040
- Denim #3B638C ΔE 0.045
- Dusty Grape #545775 ΔE 0.046
- Dusk Blue #26538D ΔE 0.046
Use #4C558F 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.