#334649
Closest named color: Charcoal Grey (#3C4142). oklch(37.9% 0.024 208.2), rgb(51, 70, 73).
Aa
White text reads best on this color (9.93:1).
About this color
#334649 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.019 away. White text reads best on it, at 9.93:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.11:1 |
| White text | 9.93:1 |
Values
| HEX | #334649 |
| RGB | rgb(51, 70, 73) |
| HSL | hsl(188, 18%, 24%) |
| OKLCH | oklch(37.9% 0.024 208.2) |
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 #334649 | 9.93:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #334649 | 2.11:1 | Fails | Lc 10.9 | Not readable |
| #334649 text on white | 9.93:1 | AAA | Lc 93.1 | Preferred for body text |
| #334649 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B4C4C7
oklch(80.9% 0.018 210.2)
-
Step 400
400
#8CA6AA
oklch(70.7% 0.029 207.8)
-
Step 500
500
#6F9095
oklch(63% 0.038 207.7)
-
Step 600
600
#577A80
oklch(55.5% 0.041 209.2)
-
Step 700
700
#47676C
oklch(49.1% 0.038 208.1)
-
Step 800
800
#3B5458
oklch(42.7% 0.031 208.4)
-
Step 900
900 (this color)
#334649
oklch(37.9% 0.024 208.2)
-
Step 950
950
#1E292A
oklch(27.1% 0.015 203.2)
#334649 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) | #434449 | 0.024 |
| Deuteranopia (no green cones) | #3F4149 | 0.023 |
| Tritanopia (no blue cones) | #2C4847 | 0.012 |
| Achromatopsia (no color) | #434343 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334649
#334649
oklch(37.9% 0.024 208.2)
- #4F3D3B
#4F3D3B
oklch(37.9% 0.026 25.7)
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 #334649, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.019
- Charcoal #264653 ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.033
- Onyx #343A40 ΔE 0.038
- Dark Teal #014D4E ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
Use #334649 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.