#394758
Closest named color: Dark Grey Blue (#29465B). oklch(39.3% 0.034 253.5), rgb(57, 71, 88).
Aa
White text reads best on this color (9.47:1).
About this color
#394758 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.034 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.022 away. White text reads best on it, at 9.47:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.21:1 |
| White text | 9.47:1 |
Values
| HEX | #394758 |
| RGB | rgb(57, 71, 88) |
| HSL | hsl(213, 21%, 28%) |
| OKLCH | oklch(39.3% 0.034 253.5) |
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 #394758 | 9.47:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #394758 | 2.21:1 | Fails | Lc 12.0 | Not readable |
| #394758 text on white | 9.47:1 | AAA | Lc 91.9 | Preferred for body text |
| #394758 text on black | 2.21:1 | Fails | Lc -10.5 | 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 900.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D3DAE3
oklch(88.6% 0.015 254.6)
-
Step 300
300
#B5C2D1
oklch(80.9% 0.026 251.9)
-
Step 400
400
#8FA3BA
oklch(70.8% 0.041 252)
-
Step 500
500
#748CA9
oklch(63.2% 0.052 253.4)
-
Step 600
600
#5C7594
oklch(55.5% 0.057 254.1)
-
Step 700
700
#4C637E
oklch(49.2% 0.052 252.8)
-
Step 800
800
#3E5167
oklch(42.8% 0.044 252.5)
-
Step 900
900 (this color)
#394758
oklch(39.3% 0.034 253.5)
-
Step 950
950
#1F2731
oklch(27% 0.022 254.2)
#394758 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) | #414859 | 0.013 |
| Deuteranopia (no green cones) | #3D4458 | 0.011 |
| Tritanopia (no blue cones) | #304B4D | 0.029 |
| Achromatopsia (no color) | #464646 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #394758
#394758
oklch(39.3% 0.034 253.5)
- #514331
#514331
oklch(39.2% 0.034 73.5)
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 #394758, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.022
- Charcoal #264653 ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.037
- Onyx #343A40 ΔE 0.052
- Dark Teal #014D4E ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.056
- Deep Teal #00555A ΔE 0.058
Use #394758 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.