#47404F
Closest named color: Charcoal Grey (#3C4142). oklch(38.4% 0.027 306.3), rgb(71, 64, 79).
Aa
White text reads best on this color (9.93:1).
About this color
#47404F is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.031 away. White text reads best on it, at 9.93:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.11:1 |
| White text | 9.93:1 |
Values
| HEX | #47404F |
| RGB | rgb(71, 64, 79) |
| HSL | hsl(268, 10%, 28%) |
| OKLCH | oklch(38.4% 0.027 306.3) |
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 #47404F | 9.93:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #47404F | 2.11:1 | Fails | Lc 10.9 | Not readable |
| #47404F text on white | 9.93:1 | AAA | Lc 93.1 | Preferred for body text |
| #47404F text on black | 2.11:1 | Fails | Lc -9.4 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9ED
oklch(93.7% 0.006 308.4)
-
Step 200
200
#DBD7DF
oklch(88.5% 0.012 308.3)
-
Step 300
300
#C4BDCB
oklch(80.8% 0.021 308.2)
-
Step 400
400
#A59CB1
oklch(70.7% 0.032 304.9)
-
Step 500
500
#90839D
oklch(63% 0.041 307.7)
-
Step 600
600
#7A6D88
oklch(55.6% 0.044 306.8)
-
Step 700
700
#675B74
oklch(49.2% 0.042 306.7)
-
Step 800
800
#544A5E
oklch(42.7% 0.035 307.6)
-
Step 900
900 (this color)
#47404F
oklch(38.4% 0.027 306.3)
-
Step 950
950
#28242D
oklch(26.9% 0.017 305.4)
#47404F 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) | #3E4250 | 0.015 |
| Deuteranopia (no green cones) | #3F434F | 0.015 |
| Tritanopia (no blue cones) | #464245 | 0.020 |
| Achromatopsia (no color) | #434343 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47404F
#47404F
oklch(38.4% 0.027 306.3)
- #404637
#404637
oklch(38.4% 0.026 125.3)
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 #47404F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.031
- Onyx #343A40 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.046
- Charcoal #264653 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.056
- Purple Brown #673A3F ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.063
- Gunmetal #293241 ΔE 0.072
Use #47404F 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.