#434C9C
Closest named color: Blueberry (#464196). oklch(45.2% 0.129 275.2), rgb(67, 76, 156).
Aa
White text reads best on this color (7.62:1).
About this color
#434C9C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.129 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.029 away. White text reads best on it, at 7.62:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #434C9C |
| RGB | rgb(67, 76, 156) |
| HSL | hsl(234, 40%, 44%) |
| OKLCH | oklch(45.2% 0.129 275.2) |
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 #434C9C | 7.62:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #434C9C | 2.75:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #434C9C text on white | 7.62:1 | AAA | Lc 86.3 | Fine for body text |
| #434C9C text on black | 2.75:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D1D8F5
oklch(88.6% 0.041 274.8)
-
Step 300
300
#B2BDF2
oklch(80.8% 0.076 275.5)
-
Step 400
400
#8B9AEB
oklch(70.7% 0.12 274.9)
-
Step 500
500
#707EE5
oklch(63% 0.154 275.2)
-
Step 600
600
#5A65D3
oklch(55.6% 0.167 275.3)
-
Step 700
700
#4A53B7
oklch(49.1% 0.156 275.2)
-
Step 800
800 (this color)
#434C9C
oklch(45.2% 0.129 275.2)
-
Step 900
900
#333B76
oklch(37.8% 0.1 274.8)
-
Step 950
950
#1E2345
oklch(27.1% 0.063 275.1)
#434C9C 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) | #23579F | 0.041 |
| Deuteranopia (no green cones) | #14509A | 0.046 |
| Tritanopia (no blue cones) | #115E6C | 0.114 |
| Achromatopsia (no color) | #545454 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434C9C
#434C9C
oklch(45.2% 0.129 275.2)
- #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 #434C9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.029
- Twilight #4E518B ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.047
- Cobalt #1E488F ΔE 0.051
- Dusk #4E5481 ΔE 0.056
- Dusky Blue #475F94 ΔE 0.058
Use #434C9C 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.