#394F99
Closest named color: Dusk Blue (#26538D). oklch(45% 0.123 268.6), rgb(57, 79, 153).
Aa
White text reads best on this color (7.62:1).
About this color
#394F99 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.123 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.031 away. White text reads best on it, at 7.62:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #394F99 |
| RGB | rgb(57, 79, 153) |
| HSL | hsl(226, 46%, 41%) |
| OKLCH | oklch(45% 0.123 268.6) |
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 #394F99 | 7.62:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #394F99 | 2.75:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #394F99 text on white | 7.62:1 | AAA | Lc 86.3 | Fine for body text |
| #394F99 text on black | 2.75:1 | Fails | Lc -15.8 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#ADBFF0
oklch(80.8% 0.072 269)
-
Step 400
400
#839DE9
oklch(70.7% 0.116 268.9)
-
Step 500
500
#6483E2
oklch(63.1% 0.147 268.4)
-
Step 600
600
#4D6AD0
oklch(55.6% 0.16 268.8)
-
Step 700
700
#3E58B4
oklch(49.1% 0.149 268.6)
-
Step 800
800 (this color)
#394F99
oklch(45% 0.123 268.6)
-
Step 900
900
#2C3D74
oklch(37.6% 0.096 268.5)
-
Step 950
950
#1A2444
oklch(26.9% 0.061 268.9)
#394F99 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) | #2A589C | 0.027 |
| Deuteranopia (no green cones) | #194F97 | 0.030 |
| Tritanopia (no blue cones) | #00606C | 0.107 |
| Achromatopsia (no color) | #545454 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #394F99
#394F99
oklch(45% 0.123 268.6)
- #6A5200
#6A5200
oklch(45.1% 0.092 89.1)
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 #394F99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.031
- Twilight #4E518B ΔE 0.038
- Blueberry #464196 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.038
- Cobalt #1E488F ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.047
- Light Navy #155084 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.052
Use #394F99 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.