#394789
Closest named color: Cobalt (#1E488F). oklch(42.1% 0.11 271.9), rgb(57, 71, 137).
Aa
White text reads best on this color (8.61:1).
About this color
#394789 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.110 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 8.61:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #394789 |
| RGB | rgb(57, 71, 137) |
| HSL | hsl(230, 41%, 38%) |
| OKLCH | oklch(42.1% 0.11 271.9) |
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 #394789 | 8.61:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #394789 | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #394789 text on white | 8.61:1 | AAA | Lc 89.4 | Fine for body text |
| #394789 text on black | 2.43:1 | Fails | Lc -12.8 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D0D8F2
oklch(88.4% 0.037 272)
-
Step 300
300
#B2BFEB
oklch(81% 0.064 272)
-
Step 400
400
#8A9DE1
oklch(70.8% 0.102 271.6)
-
Step 500
500
#6E83D9
oklch(63.2% 0.132 271.8)
-
Step 600
600
#576AC6
oklch(55.5% 0.144 272.2)
-
Step 700
700
#4758AB
oklch(49% 0.133 271.9)
-
Step 800
800 (this color)
#394789
oklch(42.1% 0.11 271.9)
-
Step 900
900
#323D6F
oklch(37.7% 0.087 272.3)
-
Step 950
950
#1D2441
oklch(26.9% 0.055 272)
#394789 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) | #284F8B | 0.027 |
| Deuteranopia (no green cones) | #1D4888 | 0.030 |
| Tritanopia (no blue cones) | #065661 | 0.099 |
| Achromatopsia (no color) | #4C4C4C | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #394789
#394789
oklch(42.1% 0.11 271.9)
- #5E4B00
#5E4B00
oklch(42% 0.086 92.1)
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 #394789, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Blueberry #464196 ΔE 0.033
- Dark Slate Blue #483D8B ΔE 0.033
- Dusk Blue #26538D ΔE 0.036
- Light Navy #155084 ΔE 0.042
- Twilight #4E518B ΔE 0.044
- Twilight Blue #0A437A ΔE 0.054
- Dusk #4E5481 ΔE 0.054
Use #394789 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.