#374646
Closest named color: Charcoal Grey (#3C4142). oklch(38.1% 0.019 196.4), rgb(55, 70, 70).
Aa
White text reads best on this color (9.87:1).
About this color
#374646 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.016 away. White text reads best on it, at 9.87:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #374646 |
| RGB | rgb(55, 70, 70) |
| HSL | hsl(180, 12%, 25%) |
| OKLCH | oklch(38.1% 0.019 196.4) |
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 #374646 | 9.87:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #374646 | 2.12:1 | Fails | Lc 11.0 | Not readable |
| #374646 text on white | 9.87:1 | AAA | Lc 92.9 | Preferred for body text |
| #374646 text on black | 2.12:1 | Fails | Lc -9.6 | 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
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B7C4C4
oklch(81% 0.014 196.9)
-
Step 400
400
#91A5A5
oklch(70.6% 0.022 196.7)
-
Step 500
500
#758F8F
oklch(63% 0.03 196.4)
-
Step 600
600
#5E7979
oklch(55.5% 0.031 196.3)
-
Step 700
700
#4D6666
oklch(49% 0.03 196.2)
-
Step 800
800
#3F5353
oklch(42.6% 0.025 196.3)
-
Step 900
900 (this color)
#374646
oklch(38.1% 0.019 196.4)
-
Step 950
950
#202828
oklch(26.9% 0.011 196.5)
#374646 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) | #444446 | 0.020 |
| Deuteranopia (no green cones) | #414246 | 0.019 |
| Tritanopia (no blue cones) | #324746 | 0.007 |
| Achromatopsia (no color) | #434343 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374646
#374646
oklch(38.1% 0.019 196.4)
- #4C3F3F
#4C3F3F
oklch(38.1% 0.018 18)
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 #374646, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.016
- Dark Slate Gray #2F4F4F ΔE 0.029
- Charcoal #264653 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.039
- Onyx #343A40 ΔE 0.039
- Dark Teal #014D4E ΔE 0.045
- Dark Blue Green #005249 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.055
Use #374646 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.