#394F63
Closest named color: Dark Grey Blue (#29465B). oklch(41.8% 0.043 246.5), rgb(57, 79, 99).
Aa
White text reads best on this color (8.49:1).
About this color
#394F63 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.043 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.038 away. White text reads best on it, at 8.49:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #394F63 |
| RGB | rgb(57, 79, 99) |
| HSL | hsl(209, 27%, 31%) |
| OKLCH | oklch(41.8% 0.043 246.5) |
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 #394F63 | 8.49:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #394F63 | 2.47:1 | Fails | Lc 14.8 | Not readable |
| #394F63 text on white | 8.49:1 | AAA | Lc 89.2 | Fine for body text |
| #394F63 text on black | 2.47:1 | Fails | Lc -13.0 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B4C3D0
oklch(81% 0.025 244.2)
-
Step 400
400
#8DA4B9
oklch(70.8% 0.04 246)
-
Step 500
500
#708DA7
oklch(63.1% 0.051 245.8)
-
Step 600
600
#587793
oklch(55.6% 0.056 246.3)
-
Step 700
700
#48647D
oklch(49.1% 0.052 246.1)
-
Step 800
800 (this color)
#394F63
oklch(41.8% 0.043 246.5)
-
Step 900
900
#334453
oklch(37.8% 0.034 245.5)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#394F63 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) | #474F64 | 0.020 |
| Deuteranopia (no green cones) | #424B63 | 0.017 |
| Tritanopia (no blue cones) | #2A5456 | 0.036 |
| Achromatopsia (no color) | #4D4D4D | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #394F63
#394F63
oklch(41.8% 0.043 246.5)
- #5D4833
#5D4833
oklch(41.8% 0.043 66.2)
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 #394F63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.038
- YInMn Blue #415A77 ΔE 0.044
- Charcoal #264653 ΔE 0.045
- Deep Teal #00555A ΔE 0.050
- Dusty Grape #545775 ΔE 0.055
- Petrol #005F6A ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.060
Use #394F63 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.