#3D4052
Closest named color: Charcoal Grey (#3C4142). oklch(37.6% 0.031 277.4), rgb(61, 64, 82).
Aa
White text reads best on this color (10.22:1).
About this color
#3D4052 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.031 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.029 away. White text reads best on it, at 10.22:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #3D4052 |
| RGB | rgb(61, 64, 82) |
| HSL | hsl(231, 15%, 28%) |
| OKLCH | oklch(37.6% 0.031 277.4) |
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 #3D4052 | 10.22:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #3D4052 | 2.05:1 | Fails | Lc 10.2 | Not readable |
| #3D4052 text on white | 10.22:1 | AAA | Lc 93.8 | Preferred for body text |
| #3D4052 text on black | 2.05:1 | Fails | Lc -8.8 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8E9EE
oklch(93.5% 0.007 277.2)
-
Step 200
200
#D7D8E2
oklch(88.4% 0.014 281.5)
-
Step 300
300
#BCC0D0
oklch(81% 0.023 274.7)
-
Step 400
400
#9A9FB8
oklch(70.7% 0.037 276.5)
-
Step 500
500
#8287A7
oklch(63.1% 0.048 278)
-
Step 600
600
#6B7192
oklch(55.6% 0.052 276.6)
-
Step 700
700
#5A5E7C
oklch(49% 0.048 278.5)
-
Step 800
800
#494D65
oklch(42.6% 0.04 277.2)
-
Step 900
900 (this color)
#3D4052
oklch(37.6% 0.031 277.4)
-
Step 950
950
#242630
oklch(27.1% 0.019 276.2)
#3D4052 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) | #3B4253 | 0.006 |
| Deuteranopia (no green cones) | #3A4052 | 0.005 |
| Tritanopia (no blue cones) | #384346 | 0.027 |
| Achromatopsia (no color) | #414141 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4052
#3D4052
oklch(37.6% 0.031 277.4)
- #46422F
#46422F
oklch(37.7% 0.031 97.6)
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 #3D4052, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal #264653 ΔE 0.034
- Onyx #343A40 ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.053
- Gunmetal #293241 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.063
Use #3D4052 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.