#434B9F
Closest named color: Blueberry (#464196). oklch(45.2% 0.135 275.5), rgb(67, 75, 159).
Aa
White text reads best on this color (7.64:1).
About this color
#434B9F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.135 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.028 away. White text reads best on it, at 7.64:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #434B9F |
| RGB | rgb(67, 75, 159) |
| HSL | hsl(235, 41%, 44%) |
| OKLCH | oklch(45.2% 0.135 275.5) |
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 #434B9F | 7.64:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #434B9F | 2.74:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #434B9F text on white | 7.64:1 | AAA | Lc 86.3 | Fine for body text |
| #434B9F text on black | 2.74:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F7
oklch(88.4% 0.045 275.7)
-
Step 300
300
#B2BDF4
oklch(80.9% 0.079 275.7)
-
Step 400
400
#8B99EE
oklch(70.7% 0.125 275.6)
-
Step 500
500
#707DE9
oklch(63.1% 0.161 275.6)
-
Step 600
600
#5A64D7
oklch(55.7% 0.174 275.5)
-
Step 700
700
#4A52BB
oklch(49.2% 0.163 275.4)
-
Step 800
800 (this color)
#434B9F
oklch(45.2% 0.135 275.5)
-
Step 900
900
#333A78
oklch(37.7% 0.105 275.3)
-
Step 950
950
#1E2246
oklch(26.9% 0.066 276.2)
#434B9F 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) | #1C57A2 | 0.046 |
| Deuteranopia (no green cones) | #07509D | 0.051 |
| Tritanopia (no blue cones) | #0A5E6D | 0.119 |
| Achromatopsia (no color) | #535353 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434B9F
#434B9F
oklch(45.2% 0.135 275.5)
- #665500
#665500
oklch(45.3% 0.093 95.6)
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 #434B9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.028
- Twilight #4E518B ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.046
- Dusk Blue #26538D ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.052
- Cobalt #1E488F ΔE 0.052
- Dusk #4E5481 ΔE 0.062
- Dusky Blue #475F94 ΔE 0.062
Use #434B9F 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.