#4F50A7
Closest named color: Twilight (#4E518B). oklch(47.7% 0.136 279.4), rgb(79, 80, 167).
Aa
White text reads best on this color (6.91:1).
About this color
#4F50A7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.136 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.046 away. White text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.03:1 |
| White text | 6.91:1 |
Values
| HEX | #4F50A7 |
| RGB | rgb(79, 80, 167) |
| HSL | hsl(239, 36%, 48%) |
| OKLCH | oklch(47.7% 0.136 279.4) |
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 #4F50A7 | 6.91:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #4F50A7 | 3.03:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #4F50A7 text on white | 6.91:1 | AA | Lc 83.7 | Fine for body text |
| #4F50A7 text on black | 3.03:1 | AA large text | Lc -18.3 | 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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D3D7F2
oklch(88.4% 0.037 278.9)
-
Step 300
300
#B7BDEB
oklch(80.9% 0.065 279)
-
Step 400
400
#9399E2
oklch(70.7% 0.107 279.7)
-
Step 500
500
#797ED9
oklch(63% 0.136 279.4)
-
Step 600
600
#6466C7
oklch(55.7% 0.147 279.6)
-
Step 700
700 (this color)
#4F50A7
oklch(47.7% 0.136 279.4)
-
Step 800
800
#44458B
oklch(42.7% 0.113 279.8)
-
Step 900
900
#393B6F
oklch(37.8% 0.088 279.7)
-
Step 950
950
#212341
oklch(27% 0.055 279.1)
#4F50A7 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) | #235DAA | 0.054 |
| Deuteranopia (no green cones) | #1956A5 | 0.057 |
| Tritanopia (no blue cones) | #2A6374 | 0.117 |
| Achromatopsia (no color) | #5A5A5A | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F50A7
#4F50A7
oklch(47.7% 0.136 279.4)
- #6B5D00
#6B5D00
oklch(47.7% 0.099 99)
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 #4F50A7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.046
- Blueberry #464196 ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.056
- Iris #6258C4 ΔE 0.058
- Dusk #4E5481 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.065
- Bluey Purple #6241C7 ΔE 0.067
Use #4F50A7 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.