#434E83
Closest named color: Twilight (#4E518B). oklch(44% 0.088 273.4), rgb(67, 78, 131).
Aa
White text reads best on this color (7.90:1).
About this color
#434E83 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.088 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.023 away. White text reads best on it, at 7.90:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #434E83 |
| RGB | rgb(67, 78, 131) |
| HSL | hsl(230, 32%, 39%) |
| OKLCH | oklch(44% 0.088 273.4) |
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 #434E83 | 7.90:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #434E83 | 2.65:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #434E83 text on white | 7.90:1 | AAA | Lc 87.3 | Fine for body text |
| #434E83 text on black | 2.65:1 | Fails | Lc -14.8 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B5BFE3
oklch(80.9% 0.052 273)
-
Step 400
400
#909DD5
oklch(70.7% 0.083 274)
-
Step 500
500
#7584C9
oklch(63% 0.106 273.7)
-
Step 600
600
#5E6DB6
oklch(55.6% 0.115 273.4)
-
Step 700
700
#4E5B9D
oklch(49.2% 0.107 273.5)
-
Step 800
800 (this color)
#434E83
oklch(44% 0.088 273.4)
-
Step 900
900
#363E66
oklch(37.6% 0.069 274)
-
Step 950
950
#20253C
oklch(27.1% 0.043 273.8)
#434E83 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) | #3A5485 | 0.019 |
| Deuteranopia (no green cones) | #344F82 | 0.020 |
| Tritanopia (no blue cones) | #2B5962 | 0.078 |
| Achromatopsia (no color) | #515151 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434E83
#434E83
oklch(44% 0.088 273.4)
- #635104
#635104
oklch(44.1% 0.088 93.7)
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 #434E83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.023
- Dusk #4E5481 ΔE 0.026
- Dusk Blue #26538D ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.045
- Light Navy #155084 ΔE 0.046
- Dusty Grape #545775 ΔE 0.048
Use #434E83 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.