#3B474E
Closest named color: Charcoal Grey (#3C4142). oklch(39% 0.02 233.6), rgb(59, 71, 78).
Aa
White text reads best on this color (9.55:1).
About this color
#3B474E is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.023 away. White text reads best on it, at 9.55:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #3B474E |
| RGB | rgb(59, 71, 78) |
| HSL | hsl(202, 14%, 27%) |
| OKLCH | oklch(39% 0.02 233.6) |
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 #3B474E | 9.55:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #3B474E | 2.19:1 | Fails | Lc 11.8 | Not readable |
| #3B474E text on white | 9.55:1 | AAA | Lc 92.1 | Preferred for body text |
| #3B474E text on black | 2.19:1 | Fails | Lc -10.3 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D4DADE
oklch(88.5% 0.009 236.6)
-
Step 300
300
#B8C2C9
oklch(80.8% 0.015 238.1)
-
Step 400
400
#93A3AD
oklch(70.6% 0.023 235.2)
-
Step 500
500
#788D99
oklch(63.1% 0.03 233)
-
Step 600
600
#617784
oklch(55.6% 0.033 234.1)
-
Step 700
700
#50646F
oklch(49.1% 0.03 232.2)
-
Step 800
800
#42525B
oklch(42.8% 0.025 232.8)
-
Step 900
900 (this color)
#3B474E
oklch(39% 0.02 233.6)
-
Step 950
950
#21282C
oklch(27.2% 0.012 232.9)
#3B474E 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) | #44464E | 0.014 |
| Deuteranopia (no green cones) | #41444E | 0.013 |
| Tritanopia (no blue cones) | #364949 | 0.015 |
| Achromatopsia (no color) | #454545 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B474E
#3B474E
oklch(39% 0.02 233.6)
- #4E423B
#4E423B
oklch(38.9% 0.02 52.1)
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 #3B474E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.028
- Charcoal #264653 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.032
- Onyx #343A40 ΔE 0.045
- Dark Teal #014D4E ΔE 0.051
- Deep Teal #00555A ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.058
Use #3B474E 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.