#3C474F
Closest named color: Charcoal Grey (#3C4142). oklch(39.1% 0.02 239.6), rgb(60, 71, 79).
Aa
White text reads best on this color (9.51:1).
About this color
#3C474F 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 0.025 away. White text reads best on it, at 9.51:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #3C474F |
| RGB | rgb(60, 71, 79) |
| HSL | hsl(205, 14%, 27%) |
| OKLCH | oklch(39.1% 0.02 239.6) |
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 #3C474F | 9.51:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #3C474F | 2.20:1 | Fails | Lc 11.9 | Not readable |
| #3C474F text on white | 9.51:1 | AAA | Lc 92.0 | Preferred for body text |
| #3C474F text on black | 2.20:1 | Fails | Lc -10.4 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
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
#94A3AE
oklch(70.7% 0.023 239.6)
-
Step 500
500
#798C9A
oklch(63% 0.03 240)
-
Step 600
600
#627685
oklch(55.5% 0.033 240.6)
-
Step 700
700
#516371
oklch(49% 0.031 241.7)
-
Step 800
800
#43515C
oklch(42.7% 0.025 241.9)
-
Step 900
900 (this color)
#3C474F
oklch(39.1% 0.02 239.6)
-
Step 950
950
#21272C
oklch(26.9% 0.013 243.3)
#3C474F 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) | #44474F | 0.012 |
| Deuteranopia (no green cones) | #41454F | 0.009 |
| Tritanopia (no blue cones) | #374949 | 0.016 |
| Achromatopsia (no color) | #454545 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C474F
#3C474F
oklch(39.1% 0.02 239.6)
- #4E433B
#4E433B
oklch(39.2% 0.02 58.1)
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 #3C474F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.025
- Dark Slate Gray #2F4F4F ΔE 0.030
- Charcoal #264653 ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.032
- Onyx #343A40 ΔE 0.047
- Dark Teal #014D4E ΔE 0.053
- Deep Teal #00555A ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.059
Use #3C474F 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.