#4139A5
Closest named color: Blueberry (#464196). oklch(42.2% 0.167 279.8), rgb(65, 57, 165).
Aa
White text reads best on this color (8.92:1).
About this color
#4139A5 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.167 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.033 away. White text reads best on it, at 8.92:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #4139A5 |
| RGB | rgb(65, 57, 165) |
| HSL | hsl(244, 49%, 44%) |
| OKLCH | oklch(42.2% 0.167 279.8) |
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 #4139A5 | 8.92:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #4139A5 | 2.35:1 | Fails | Lc 14.0 | Not readable |
| #4139A5 text on white | 8.92:1 | AAA | Lc 89.9 | Fine for body text |
| #4139A5 text on black | 2.35:1 | Fails | Lc -12.3 | Not readable |
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 800.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D1D6FD
oklch(88.5% 0.054 279.5)
-
Step 300
300
#B4BAFF
oklch(80.9% 0.098 280.1)
-
Step 400
400
#8F93FF
oklch(70.7% 0.156 280)
-
Step 500
500
#7673FE
oklch(63.1% 0.201 279.9)
-
Step 600
600
#6157ED
oklch(55.6% 0.217 279.6)
-
Step 700
700
#5146CE
oklch(49.1% 0.201 279.6)
-
Step 800
800 (this color)
#4139A5
oklch(42.2% 0.167 279.8)
-
Step 900
900
#373484
oklch(37.7% 0.13 279.8)
-
Step 950
950
#201F4D
oklch(26.9% 0.083 280.3)
#4139A5 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) | #004EA8 | 0.066 |
| Deuteranopia (no green cones) | #0045A3 | 0.059 |
| Tritanopia (no blue cones) | #00546A | 0.141 |
| Achromatopsia (no color) | #4A4A4A | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4139A5
#4139A5
oklch(42.2% 0.167 279.8)
- #594E00
#594E00
oklch(42.2% 0.088 100)
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 #4139A5, closest first.
No curated palette has a color within ΔE 0.04 of #4139A5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.033
- Sapphire #2138AB ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.046
- Majorelle Blue #3F37C9 ΔE 0.058
- Indigo Blue #3A18B1 ΔE 0.059
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Cobalt #1E488F ΔE 0.064
- Imperial Purple #480CA8 ΔE 0.065
Use #4139A5 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.