#4143BD
Closest named color: Majorelle Blue (#3F37C9). oklch(46% 0.187 275.5), rgb(65, 67, 189).
Aa
White text reads best on this color (7.60:1).
About this color
#4143BD is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.187 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Majorelle Blue (#3F37C9), ΔE 0.030 away. White text reads best on it, at 7.60:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.187) |
| Temperature | cool |
| Nearest name | Majorelle Blue (#3F37C9) |
| Black text | 2.76:1 |
| White text | 7.60:1 |
Values
| HEX | #4143BD |
| RGB | rgb(65, 67, 189) |
| HSL | hsl(239, 49%, 50%) |
| OKLCH | oklch(46% 0.187 275.5) |
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 #4143BD | 7.60:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #4143BD | 2.76:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #4143BD text on white | 7.60:1 | AAA | Lc 85.8 | Fine for body text |
| #4143BD text on black | 2.76:1 | Fails | Lc -16.2 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#CFD7FB
oklch(88.5% 0.05 275.4)
-
Step 300
300
#B0BCFB
oklch(80.9% 0.09 275.9)
-
Step 400
400
#8897FA
oklch(70.7% 0.145 275.5)
-
Step 500
500
#6D7AF6
oklch(63.2% 0.183 275.3)
-
Step 600
600
#585FE5
oklch(55.7% 0.2 275.5)
-
Step 700
700 (this color)
#4143BD
oklch(46% 0.187 275.5)
-
Step 800
800
#3B40A1
oklch(42.7% 0.154 275.5)
-
Step 900
900
#323880
oklch(37.8% 0.12 275.5)
-
Step 950
950
#1D214B
oklch(27% 0.077 275.9)
#4143BD 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) | #0059C1 | 0.062 |
| Deuteranopia (no green cones) | #004EBB | 0.051 |
| Tritanopia (no blue cones) | #00627A | 0.152 |
| Achromatopsia (no color) | #545454 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4143BD
#4143BD
oklch(46% 0.187 275.5)
- #685700
#685700
oklch(46% 0.095 95.9)
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 #4143BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Majorelle Blue #3F37C9 ΔE 0.030
- Blue With A Hint Of Purple #533CC6 ΔE 0.032
- Blue Blue #2242C7 ΔE 0.039
- Blurple #5539CC ΔE 0.040
- Bluey Purple #6241C7 ΔE 0.054
- Sapphire #2138AB ΔE 0.059
- Blueberry #464196 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.068
Use #4143BD 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.