#434A8F
Closest named color: Blueberry (#464196). oklch(43.9% 0.112 276.4), rgb(67, 74, 143).
Aa
White text reads best on this color (8.03:1).
About this color
#434A8F is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.112 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.027 away. White text reads best on it, at 8.03:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #434A8F |
| RGB | rgb(67, 74, 143) |
| HSL | hsl(234, 36%, 41%) |
| OKLCH | oklch(43.9% 0.112 276.4) |
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 #434A8F | 8.03:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #434A8F | 2.61:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #434A8F text on white | 8.03:1 | AAA | Lc 87.7 | Fine for body text |
| #434A8F text on black | 2.61:1 | Fails | Lc -14.5 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B5BEEC
oklch(81% 0.066 276.2)
-
Step 400
400
#8F9BE2
oklch(70.8% 0.105 276)
-
Step 500
500
#7580D9
oklch(63.1% 0.134 276.5)
-
Step 600
600
#5E68C7
oklch(55.6% 0.146 276.1)
-
Step 700
700
#4E56AC
oklch(49.1% 0.136 276.2)
-
Step 800
800 (this color)
#434A8F
oklch(43.9% 0.112 276.4)
-
Step 900
900
#363C6F
oklch(37.7% 0.087 276.3)
-
Step 950
950
#1F2341
oklch(26.9% 0.056 276.2)
#434A8F 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) | #2B5392 | 0.035 |
| Deuteranopia (no green cones) | #234D8D | 0.038 |
| Tritanopia (no blue cones) | #225965 | 0.100 |
| Achromatopsia (no color) | #505050 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434A8F
#434A8F
oklch(43.9% 0.112 276.4)
- #615100
#615100
oklch(43.8% 0.09 95.9)
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 #434A8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.027
- Twilight #4E518B ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.034
- Dusk Blue #26538D ΔE 0.039
- Cobalt #1E488F ΔE 0.044
- Dusk #4E5481 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.053
Use #434A8F 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.