#4150A1
Closest named color: Twilight (#4E518B). oklch(46.3% 0.131 272.4), rgb(65, 80, 161).
Aa
White text reads best on this color (7.27:1).
About this color
#4150A1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.131 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.040 away. White text reads best on it, at 7.27:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.88:1 |
| White text | 7.27:1 |
Values
| HEX | #4150A1 |
| RGB | rgb(65, 80, 161) |
| HSL | hsl(231, 42%, 44%) |
| OKLCH | oklch(46.3% 0.131 272.4) |
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 #4150A1 | 7.27:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #4150A1 | 2.88:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #4150A1 text on white | 7.27:1 | AAA | Lc 85.0 | Fine for body text |
| #4150A1 text on black | 2.88:1 | Fails | Lc -17.0 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B2BFEB
oklch(81% 0.064 272)
-
Step 400
400
#8B9CE0
oklch(70.6% 0.102 272.8)
-
Step 500
500
#6F83D8
oklch(63.2% 0.13 272.2)
-
Step 600
600
#586BC5
oklch(55.7% 0.141 272.1)
-
Step 700
700 (this color)
#4150A1
oklch(46.3% 0.131 272.4)
-
Step 800
800
#3B498A
oklch(42.8% 0.108 271.9)
-
Step 900
900
#333D6E
oklch(37.7% 0.085 273)
-
Step 950
950
#1E2441
oklch(27% 0.055 273.4)
#4150A1 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) | #265BA4 | 0.037 |
| Deuteranopia (no green cones) | #14539F | 0.041 |
| Tritanopia (no blue cones) | #006271 | 0.114 |
| Achromatopsia (no color) | #575757 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4150A1
#4150A1
oklch(46.3% 0.131 272.4)
- #6B5600
#6B5600
oklch(46.1% 0.094 92.4)
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 #4150A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.040
- Blueberry #464196 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.043
- Dusk Blue #26538D ΔE 0.047
- Dusky Blue #475F94 ΔE 0.052
- Cobalt #1E488F ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.057
Use #4150A1 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.