#384151
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.03 261.9), rgb(56, 65, 81).
Aa
White text reads best on this color (10.27:1).
About this color
#384151 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.030 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.025 away. White text reads best on it, at 10.27:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #384151 |
| RGB | rgb(56, 65, 81) |
| HSL | hsl(218, 18%, 27%) |
| OKLCH | oklch(37.4% 0.03 261.9) |
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 #384151 | 10.27:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #384151 | 2.04:1 | Fails | Lc 10.1 | Not readable |
| #384151 text on white | 10.27:1 | AAA | Lc 93.9 | Preferred for body text |
| #384151 text on black | 2.04:1 | Fails | Lc -8.7 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D0
oklch(80.9% 0.023 263.2)
-
Step 400
400
#94A1B8
oklch(70.6% 0.037 261.9)
-
Step 500
500
#7A8AA6
oklch(63.1% 0.046 261.6)
-
Step 600
600
#637491
oklch(55.6% 0.05 261)
-
Step 700
700
#52617C
oklch(49.1% 0.047 262)
-
Step 800
800
#434F65
oklch(42.6% 0.04 262.4)
-
Step 900
900 (this color)
#384151
oklch(37.4% 0.03 261.9)
-
Step 950
950
#212730
oklch(27.1% 0.019 258.4)
#384151 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) | #3C4252 | 0.007 |
| Deuteranopia (no green cones) | #394051 | 0.003 |
| Tritanopia (no blue cones) | #314446 | 0.027 |
| Achromatopsia (no color) | #414141 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384151
#384151
oklch(37.4% 0.03 261.9)
- #493F2F
#493F2F
oklch(37.3% 0.029 79.3)
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 #384151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.025
- Charcoal #264653 ΔE 0.026
- Charcoal Grey #3C4142 ΔE 0.026
- Onyx #343A40 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.048
- Gunmetal #293241 ΔE 0.058
- Midnight Green #073B4C ΔE 0.059
Use #384151 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.