#39474D
Closest named color: Charcoal Grey (#3C4142). oklch(38.8% 0.021 225.7), rgb(57, 71, 77).
Aa
White text reads best on this color (9.62:1).
About this color
#39474D 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 0.022 away. White text reads best on it, at 9.62:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.18:1 |
| White text | 9.62:1 |
Values
| HEX | #39474D |
| RGB | rgb(57, 71, 77) |
| HSL | hsl(198, 15%, 26%) |
| OKLCH | oklch(38.8% 0.021 225.7) |
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 #39474D | 9.62:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #39474D | 2.18:1 | Fails | Lc 11.7 | Not readable |
| #39474D text on white | 9.62:1 | AAA | Lc 92.3 | Preferred for body text |
| #39474D text on black | 2.18:1 | Fails | Lc -10.1 | 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
#D3DADD
oklch(88.4% 0.009 225.1)
-
Step 300
300
#B7C3C8
oklch(80.9% 0.015 224.5)
-
Step 400
400
#91A4AD
oklch(70.7% 0.025 227.9)
-
Step 500
500
#768E98
oklch(63.1% 0.031 225)
-
Step 600
600
#5E7883
oklch(55.6% 0.035 225.6)
-
Step 700
700
#4E656F
oklch(49.2% 0.032 226.3)
-
Step 800
800
#40525A
oklch(42.6% 0.026 226.8)
-
Step 900
900 (this color)
#39474D
oklch(38.8% 0.021 225.7)
-
Step 950
950
#20282B
oklch(27% 0.013 222.5)
#39474D 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) | #44464D | 0.017 |
| Deuteranopia (no green cones) | #41444D | 0.015 |
| Tritanopia (no blue cones) | #334949 | 0.014 |
| Achromatopsia (no color) | #454545 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39474D
#39474D
oklch(38.8% 0.021 225.7)
- #4E413B
#4E413B
oklch(38.7% 0.021 46.2)
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 #39474D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.022
- Charcoal #264653 ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.032
- Onyx #343A40 ΔE 0.044
- Dark Teal #014D4E ΔE 0.048
- Deep Teal #00555A ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.056
Use #39474D 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.