#3A474E
Closest named color: Charcoal Grey (#3C4142). oklch(38.9% 0.021 231.5), rgb(58, 71, 78).
Aa
White text reads best on this color (9.58:1).
About this color
#3A474E is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.021. 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 9.58:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #3A474E |
| RGB | rgb(58, 71, 78) |
| HSL | hsl(201, 15%, 27%) |
| OKLCH | oklch(38.9% 0.021 231.5) |
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 #3A474E | 9.58:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #3A474E | 2.19:1 | Fails | Lc 11.7 | Not readable |
| #3A474E text on white | 9.58:1 | AAA | Lc 92.2 | Preferred for body text |
| #3A474E text on black | 2.19:1 | Fails | Lc -10.2 | 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
#B7C3C9
oklch(81% 0.016 229)
-
Step 400
400
#92A4AD
oklch(70.8% 0.024 229.2)
-
Step 500
500
#778D99
oklch(63% 0.031 231.8)
-
Step 600
600
#5F7784
oklch(55.5% 0.035 231.9)
-
Step 700
700
#4F6470
oklch(49.1% 0.032 233.3)
-
Step 800
800
#41525B
oklch(42.8% 0.026 231.2)
-
Step 900
900 (this color)
#3A474E
oklch(38.9% 0.021 231.5)
-
Step 950
950
#20282C
oklch(27.1% 0.014 229.5)
#3A474E 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 | 0.015 |
| Deuteranopia (no green cones) | #41444E | 0.014 |
| Tritanopia (no blue cones) | #344949 | 0.015 |
| Achromatopsia (no color) | #454545 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A474E
#3A474E
oklch(38.9% 0.021 231.5)
- #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 #3A474E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.023
- Charcoal #264653 ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.031
- Onyx #343A40 ΔE 0.045
- Dark Teal #014D4E ΔE 0.050
- Deep Teal #00555A ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.057
Use #3A474E 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.