#43429E
Closest named color: Blueberry (#464196). oklch(43.4% 0.146 278.9), rgb(67, 66, 158).
Aa
White text reads best on this color (8.36:1).
About this color
#43429E is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.146 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.014 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #43429E |
| RGB | rgb(67, 66, 158) |
| HSL | hsl(241, 41%, 44%) |
| OKLCH | oklch(43.4% 0.146 278.9) |
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 #43429E | 8.36:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #43429E | 2.51:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #43429E text on white | 8.36:1 | AAA | Lc 88.5 | Fine for body text |
| #43429E text on black | 2.51:1 | Fails | Lc -13.7 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D2D7F9
oklch(88.6% 0.047 278.8)
-
Step 300
300
#B4BBF7
oklch(80.8% 0.085 279.1)
-
Step 400
400
#8F96F4
oklch(70.7% 0.137 279)
-
Step 500
500
#7679EF
oklch(63.1% 0.173 279.1)
-
Step 600
600
#605EDE
oklch(55.5% 0.19 278.9)
-
Step 700
700
#504DC1
oklch(49.1% 0.176 278.9)
-
Step 800
800 (this color)
#43429E
oklch(43.4% 0.146 278.9)
-
Step 900
900
#37377C
oklch(37.7% 0.114 279.4)
-
Step 950
950
#202148
oklch(27% 0.071 279.4)
#43429E 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) | #0051A1 | 0.061 |
| Deuteranopia (no green cones) | #004A9C | 0.058 |
| Tritanopia (no blue cones) | #105869 | 0.127 |
| Achromatopsia (no color) | #4E4E4E | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43429E
#43429E
oklch(43.4% 0.146 278.9)
- #5E5100
#5E5100
oklch(43.5% 0.09 98.5)
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 #43429E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.014
- Dark Slate Blue #483D8B ΔE 0.033
- Cobalt #1E488F ΔE 0.052
- Sapphire #2138AB ΔE 0.057
- Twilight #4E518B ΔE 0.058
- Dusk Blue #26538D ΔE 0.063
- Rebecca Purple #663399 ΔE 0.067
- Blue With A Hint Of Purple #533CC6 ΔE 0.069
Use #43429E 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.