#4C50A5
Closest named color: Twilight (#4E518B). oklch(47.3% 0.134 277.9), rgb(76, 80, 165).
Aa
White text reads best on this color (7.00:1).
About this color
#4C50A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.134 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.043 away. White text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #4C50A5 |
| RGB | rgb(76, 80, 165) |
| HSL | hsl(237, 37%, 47%) |
| OKLCH | oklch(47.3% 0.134 277.9) |
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 #4C50A5 | 7.00:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #4C50A5 | 2.99:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #4C50A5 text on white | 7.00:1 | AAA | Lc 84.0 | Fine for body text |
| #4C50A5 text on black | 2.99:1 | Fails | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D3D7F1
oklch(88.4% 0.036 278.7)
-
Step 300
300
#B6BDEB
oklch(80.9% 0.065 278.1)
-
Step 400
400
#919AE1
oklch(70.7% 0.104 277.8)
-
Step 500
500
#7780D8
oklch(63.2% 0.132 277.5)
-
Step 600
600
#6167C6
oklch(55.6% 0.145 277.8)
-
Step 700
700 (this color)
#4C50A5
oklch(47.3% 0.134 277.9)
-
Step 800
800
#42468A
oklch(42.6% 0.111 278.1)
-
Step 900
900
#373B6F
oklch(37.6% 0.088 277.9)
-
Step 950
950
#202341
oklch(27% 0.056 277.7)
#4C50A5 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) | #255DA8 | 0.050 |
| Deuteranopia (no green cones) | #1956A3 | 0.053 |
| Tritanopia (no blue cones) | #246373 | 0.117 |
| Achromatopsia (no color) | #595959 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C50A5
#4C50A5
oklch(47.3% 0.134 277.9)
- #6B5B00
#6B5B00
oklch(47.3% 0.097 97.2)
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 #4C50A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.043
- Blueberry #464196 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.054
- Dusk Blue #26538D ΔE 0.062
- Dusk #4E5481 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.062
- Iris #6258C4 ΔE 0.063
Use #4C50A5 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.