#434B86
Closest named color: Twilight (#4E518B). oklch(43.5% 0.097 275.8), rgb(67, 75, 134).
Aa
White text reads best on this color (8.11:1).
About this color
#434B86 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.097 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.026 away. White text reads best on it, at 8.11:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #434B86 |
| RGB | rgb(67, 75, 134) |
| HSL | hsl(233, 33%, 39%) |
| OKLCH | oklch(43.5% 0.097 275.8) |
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 #434B86 | 8.11:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #434B86 | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #434B86 text on white | 8.11:1 | AAA | Lc 88.0 | Fine for body text |
| #434B86 text on black | 2.58:1 | Fails | Lc -14.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B6BEE6
oklch(80.9% 0.057 276.2)
-
Step 400
400
#919CD9
oklch(70.7% 0.09 276)
-
Step 500
500
#7682CF
oklch(63% 0.117 275.8)
-
Step 600
600
#606BBC
oklch(55.7% 0.126 275.7)
-
Step 700
700
#4F59A2
oklch(49.2% 0.117 275.4)
-
Step 800
800 (this color)
#434B86
oklch(43.5% 0.097 275.8)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#434B86 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) | #345288 | 0.025 |
| Deuteranopia (no green cones) | #2E4D85 | 0.027 |
| Tritanopia (no blue cones) | #295762 | 0.085 |
| Achromatopsia (no color) | #505050 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434B86
#434B86
oklch(43.5% 0.097 275.8)
- #605000
#605000
oklch(43.5% 0.089 95.7)
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 #434B86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.026
- Dusk #4E5481 ΔE 0.035
- Dusk Blue #26538D ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.040
- Blueberry #464196 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.047
- Cobalt #1E488F ΔE 0.047
Use #434B86 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.