#434BA1
Closest named color: Blueberry (#464196). oklch(45.4% 0.137 275.5), rgb(67, 75, 161).
Aa
White text reads best on this color (7.60:1).
About this color
#434BA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.137 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 7.60:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.75:1 |
| White text | 7.60:1 |
Values
| HEX | #434BA1 |
| RGB | rgb(67, 75, 161) |
| HSL | hsl(235, 41%, 45%) |
| OKLCH | oklch(45.4% 0.137 275.5) |
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 #434BA1 | 7.60:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #434BA1 | 2.75:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #434BA1 text on white | 7.60:1 | AAA | Lc 86.2 | Fine for body text |
| #434BA1 text on black | 2.75:1 | Fails | Lc -15.9 | 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
#B1BDF5
oklch(80.9% 0.08 275.1)
-
Step 400
400
#8A99F0
oklch(70.7% 0.128 275.2)
-
Step 500
500
#6F7DEB
oklch(63.1% 0.164 275.2)
-
Step 600
600
#5963D9
oklch(55.6% 0.178 275.3)
-
Step 700
700
#4A51BC
oklch(49.1% 0.166 275.6)
-
Step 800
800 (this color)
#434BA1
oklch(45.4% 0.137 275.5)
-
Step 900
900
#333A79
oklch(37.8% 0.106 275.3)
-
Step 950
950
#1E2247
oklch(27% 0.068 276.2)
#434BA1 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) | #1958A4 | 0.048 |
| Deuteranopia (no green cones) | #00509F | 0.053 |
| Tritanopia (no blue cones) | #045F6E | 0.122 |
| Achromatopsia (no color) | #545454 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434BA1
#434BA1
oklch(45.4% 0.137 275.5)
- #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 #434BA1, 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 0.045
- Dark Slate Blue #483D8B ΔE 0.048
- Dusk Blue #26538D ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.054
- Cobalt #1E488F ΔE 0.054
- Dusky Blue #475F94 ΔE 0.063
- Dusk #4E5481 ΔE 0.064
Use #434BA1 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.