#3B424E
Closest named color: Charcoal Grey (#3C4142). oklch(37.7% 0.023 261.2), rgb(59, 66, 78).
Aa
White text reads best on this color (10.11:1).
About this color
#3B424E is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.020 away. White text reads best on it, at 10.11:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #3B424E |
| RGB | rgb(59, 66, 78) |
| HSL | hsl(218, 14%, 27%) |
| OKLCH | oklch(37.7% 0.023 261.2) |
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 #3B424E | 10.11:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #3B424E | 2.07:1 | Fails | Lc 10.4 | Not readable |
| #3B424E text on white | 10.11:1 | AAA | Lc 93.5 | Preferred for body text |
| #3B424E text on black | 2.07:1 | Fails | Lc -9.0 | 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 900.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9DF
oklch(88.5% 0.009 264.5)
-
Step 300
300
#BBC1CC
oklch(81% 0.017 262.7)
-
Step 400
400
#97A1B2
oklch(70.7% 0.027 261.1)
-
Step 500
500
#7E8A9F
oklch(63.1% 0.035 261.7)
-
Step 600
600
#67748A
oklch(55.6% 0.038 260.9)
-
Step 700
700
#566175
oklch(49.1% 0.035 262.4)
-
Step 800
800
#464F5F
oklch(42.6% 0.029 261.9)
-
Step 900
900 (this color)
#3B424E
oklch(37.7% 0.023 261.2)
-
Step 950
950
#23272E
oklch(27.2% 0.014 261.7)
#3B424E 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) | #3E434F | 0.006 |
| Deuteranopia (no green cones) | #3C414E | 0.003 |
| Tritanopia (no blue cones) | #364446 | 0.019 |
| Achromatopsia (no color) | #424242 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B424E
#3B424E
oklch(37.7% 0.023 261.2)
- #484134
#484134
oklch(37.8% 0.023 82.9)
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 #3B424E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.020
- Charcoal #264653 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.030
- Onyx #343A40 ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.047
- Dark Teal #014D4E ΔE 0.059
- Gunmetal #293241 ΔE 0.062
Use #3B424E 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.