#334349
Closest named color: Charcoal Grey (#3C4142). oklch(37.1% 0.023 222.8), rgb(51, 67, 73).
Aa
White text reads best on this color (10.29:1).
About this color
#334349 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.023. 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 10.29:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #334349 |
| RGB | rgb(51, 67, 73) |
| HSL | hsl(196, 18%, 24%) |
| OKLCH | oklch(37.1% 0.023 222.8) |
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 #334349 | 10.29:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #334349 | 2.03:1 | Fails | Lc 10.0 | Not readable |
| #334349 text on white | 10.29:1 | AAA | Lc 93.9 | Preferred for body text |
| #334349 text on black | 2.03:1 | Fails | Lc -8.6 | 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
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D3DBDE
oklch(88.6% 0.01 222.1)
-
Step 300
300
#B5C3C9
oklch(80.8% 0.018 225.2)
-
Step 400
400
#8FA5AD
oklch(70.8% 0.027 221.7)
-
Step 500
500
#738F99
oklch(63.2% 0.035 221.6)
-
Step 600
600
#5B7984
oklch(55.7% 0.038 222.4)
-
Step 700
700
#4B6670
oklch(49.3% 0.036 222.7)
-
Step 800
800
#3D535B
oklch(42.7% 0.03 222.3)
-
Step 900
900 (this color)
#334349
oklch(37.1% 0.023 222.8)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#334349 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) | #3F4249 | 0.018 |
| Deuteranopia (no green cones) | #3C3F49 | 0.018 |
| Tritanopia (no blue cones) | #2C4545 | 0.015 |
| Achromatopsia (no color) | #404040 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334349
#334349
oklch(37.1% 0.023 222.8)
- #4B3C37
#4B3C37
oklch(37.1% 0.023 39.3)
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 #334349, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.016
- Charcoal #264653 ΔE 0.021
- Onyx #343A40 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.041
- Dark Teal #014D4E ΔE 0.046
- Midnight Green #073B4C ΔE 0.055
Use #334349 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.