#4D50A1
Closest named color: Twilight (#4E518B). oklch(47.1% 0.128 278.7), rgb(77, 80, 161).
Aa
White text reads best on this color (7.05:1).
About this color
#4D50A1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.128 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.036 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #4D50A1 |
| RGB | rgb(77, 80, 161) |
| HSL | hsl(238, 35%, 47%) |
| OKLCH | oklch(47.1% 0.128 278.7) |
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 #4D50A1 | 7.05:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #4D50A1 | 2.97:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #4D50A1 text on white | 7.05:1 | AAA | Lc 84.2 | Fine for body text |
| #4D50A1 text on black | 2.97:1 | Fails | Lc -17.7 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D7F0
oklch(88.4% 0.035 278.4)
-
Step 300
300
#B7BDE9
oklch(80.8% 0.062 278.8)
-
Step 400
400
#939ADE
oklch(70.7% 0.1 279)
-
Step 500
500
#7980D5
oklch(63.1% 0.127 278.5)
-
Step 600
600
#6368C2
oklch(55.7% 0.138 278.5)
-
Step 700
700 (this color)
#4D50A1
oklch(47.1% 0.128 278.7)
-
Step 800
800
#434788
oklch(42.8% 0.106 278.3)
-
Step 900
900
#383C6D
oklch(37.8% 0.083 278.1)
-
Step 950
950
#212340
oklch(27% 0.054 279.2)
#4D50A1 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) | #2A5CA4 | 0.047 |
| Deuteranopia (no green cones) | #21559F | 0.049 |
| Tritanopia (no blue cones) | #2A6271 | 0.112 |
| Achromatopsia (no color) | #595959 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D50A1
#4D50A1
oklch(47.1% 0.128 278.7)
- #695B00
#695B00
oklch(47% 0.097 98.8)
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 #4D50A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.036
- Blueberry #464196 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.050
- Dusk #4E5481 ΔE 0.056
- Dusk Blue #26538D ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.059
- Light Navy Blue #2E5A88 ΔE 0.065
Use #4D50A1 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.