#384757
Closest named color: Dark Grey Blue (#29465B). oklch(39.2% 0.033 250.3), rgb(56, 71, 87).
Aa
White text reads best on this color (9.51:1).
About this color
#384757 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.033 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.021 away. White text reads best on it, at 9.51:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #384757 |
| RGB | rgb(56, 71, 87) |
| HSL | hsl(211, 22%, 28%) |
| OKLCH | oklch(39.2% 0.033 250.3) |
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 #384757 | 9.51:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #384757 | 2.20:1 | Fails | Lc 11.9 | Not readable |
| #384757 text on white | 9.51:1 | AAA | Lc 92.0 | Preferred for body text |
| #384757 text on black | 2.20:1 | Fails | Lc -10.4 | 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
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B5C2D1
oklch(80.9% 0.026 251.9)
-
Step 400
400
#8EA3B9
oklch(70.7% 0.04 249.6)
-
Step 500
500
#728CA8
oklch(63% 0.052 250.5)
-
Step 600
600
#5B7693
oklch(55.6% 0.055 250.6)
-
Step 700
700
#4A637D
oklch(49% 0.052 249.9)
-
Step 800
800
#3D5166
oklch(42.7% 0.043 250.1)
-
Step 900
900 (this color)
#384757
oklch(39.2% 0.033 250.3)
-
Step 950
950
#1F2731
oklch(27% 0.022 254.2)
#384757 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) | #414758 | 0.014 |
| Deuteranopia (no green cones) | #3D4457 | 0.011 |
| Tritanopia (no blue cones) | #2E4B4C | 0.030 |
| Achromatopsia (no color) | #454545 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384757
#384757
oklch(39.2% 0.033 250.3)
- #514332
#514332
oklch(39.3% 0.033 72)
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 #384757, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.021
- Charcoal #264653 ΔE 0.025
- Dark Slate Gray #2F4F4F ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.035
- Onyx #343A40 ΔE 0.051
- Dark Teal #014D4E ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.055
- Deep Teal #00555A ΔE 0.057
Use #384757 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.